"Officials say former Japanese Prime Minister Abe Shinzo has been confirmed dead. He was reportedly shot during a speech on Friday in the city of Nara, near Kyoto," reported NHK News.

Abe was critically wounded after being shot. Earlier, it was reported that he was airlifted to a hospital but officials said he was not breathing and his heart had stopped.

India will observe one day of national mourning on Saturday in respect of Abe, said Prime Minister Narendra Modi as he expressed shock and death at Abe's death in a series of tweets.

He said, "I am shocked and saddened beyond words at the tragic demise of one of my dearest friends, Shinzo Abe. He was a towering global statesman, an outstanding leader, and a remarkable administrator. He dedicated his life to make Japan and the world a better place.

"My association with Mr. Abe goes back many years. I had got to know him during my tenure as Gujarat CM and our friendship continued after I became PM. His sharp insights on economy and global affairs always made a deep impression on me.

"During my recent visit to Japan, I had the opportunity to meet Mr. Abe again and discuss many issues. He was witty and insightful as always. Little did I know that this would be our last meeting. My heartfelt condolences to his family and the Japanese people."

Modi further said, "Mr. Abe made an immense contribution to elevating India-Japan relations to the level of a Special Strategic and Global Partnership. Today, whole India mourns with Japan and we stand in solidarity with our Japanese brothers and sisters in this difficult moment."

Police arrested the suspected gunman at the scene. The attack and Abe's death comes as a shock to the world. Japan is considered to be one of the world's safest countries and has some of the strictest gun control laws.?

Earlier on Friday, Prime Minister Fumio Kishida said Abe was in "severe condition" and he hoped Abe will survive. He called the attack "dastardly and barbaric" and added that the crime occurring during the election campaign, which is the foundation of democracy, was absolutely unforgivable.

Kishida and his Cabinet ministers hastily returned to Tokyo from other campaign events around the country after the shooting. "I'm praying for former prime minister Abe's survival from the bottom of my heart," Kishida said at the Prime Minister's Office after he arrived on a defense helicopter from Yamagata.

He said Abe was receiving the utmost medical treatment. He was in cardio and pulmonary arrest as he was being airlifted to the hospital, local fire department official Makoto Morimoto said.

NHK News aired dramatic footage of Abe giving a speech outside of a main train station in Nara. He is standing, dressed in a navy blue suit, raising his fist, when a gunshot is heard. Footage then shows Abe collapsed on the street, with several security guards running toward him. He is holding his chest, his shirt smeared with blood.

In the next moment, security guards leap on top of a man in gray shirt, who lies face down on the pavement. A double-barreled device which appeared to be a handmade gun, can be seen on the ground.

Nara prefectural police confirmed the arrest of a suspect for alleged attempted murder and identified him as Tetsuya Yamagami, 41. NHK reported that the suspect served in the Maritime Self-Defense Force for three years in the 2000s.

Other footage from the scene showed campaign officials surrounding Abe. Abe was still influential in the governing Liberal Democratic Party and headed its largest faction, Seiwakai. Elections for Japan's upper house, the less powerful chamber of its parliament, are on Sunday.

"A barbaric act like this is absolutely unforgivable, no matter what the reasons are, and we condemn it strongly," Japan's Chief Cabinet Secretary Hirokazu Matsuno said.

The Yomiuri Shimbun newspaper printed extra editions, which were quickly grabbed by people on the street to read about the shooting.

Nara, once the capital of Japan, is just to the east of Osaka on the country's main Honshu island.

Abe cited a chronic health problem when he resigned as prime minister. Abe had ulcerative colitis since he was a teenager and has said the condition was controlled with treatment. He told reporters at the time that it was "gut wrenching" to leave many of his goals unfinished. He spoke of his failure to resolve the issue of Japanese abducted years ago by North Korea, a territorial dispute with Russia and a revision of Japan's war-renouncing constitution.

That last goal was a big reason he was such a divisive figure. His ultra-nationalism riled the Koreas and China, and his push to create what he saw as a more normal defense posture angered many Japanese. Abe failed to achieve his cherished goal of formally rewriting the US-drafted pacifist constitution because of poor public support.

Loyalists said that his legacy was a stronger US-Japan relationship that was meant to bolster Japan's defense capability. But Abe made enemies by forcing his defense goals and other contentious issues through parliament, despite strong public opposition.

Abe is a political blue blood who was groomed to follow in the footsteps of his grandfather, former Prime Minister Nobusuke Kishi. His political rhetoric often focused on making Japan a “normal” and “beautiful” nation with a stronger military and bigger role in international affairs.

Many foreign officials expressed shock over the shooting.

Our thoughts, our prayers are with him, with his family, with the people of Japan,” Secretary of State Antony Blinken said while attending a Group of 20 foreign ministers meeting in Bali, Indonesia.

“Abe-san has been an outstanding leader of Japan and unwavering ally of the U.S. The U.S. Government and American people are praying for the well-being of Abe-san, his family, & people of Japan,” Ambassador to Japan Rahm Emanuel wrote on Twitter.

Former President Donald Trump said it was “absolutely devastating news" that Abe was shot and wounded. He said on his social media app that Abe “was a true friend of mine and, much more importantly, America. This is a tremendous blow to the wonderful people of Japan, who loved and admired him so much. We are all praying for Shinzo and his beautiful family!”

Abe said he was proud of working while leader for a stronger Japan-US security alliance and shepherding the first visit by a serving US president to the atom-bombed city of Hiroshima. He also helped Tokyo gain the right to host the 2020 Olympics by pledging that a disaster at the Fukushima nuclear plant was “under control” when it was not.

Abe became Japan's youngest prime minister in 2006, at age 52, but his overly nationalistic first stint abruptly ended a year later, also because of his health.

The end of Abe's scandal-laden first stint as prime minister was the beginning of six years of annual leadership change, remembered as an era of “revolving door” politics that lacked stability and long-term policies.

When he returned to office in 2012, Abe vowed to revitalise the nation and get its economy out of its deflationary doldrums with his “Abenomics” formula, which combines fiscal stimulus, monetary easing and structural reforms.

He won six national elections and built a rock-solid grip on power, bolstering Japan's defense role and capability and its security alliance with the US. He also stepped up patriotic education at schools and raised Japan's international profile.

(With AP inputs)