TOKYO — Japanese bid their final goodbye to former Prime Minister Shinzo Abe on Tuesday as his funeral was held at a temple days after his assassination shocked the nation.

Abe, the country’s longest-serving prime minister, remained influential even after stepping down two years ago for health reasons. He was gunned down Friday during a campaign speech in the western city of Nara.

Hundreds of people, some in formal dark suits, filled sidewalks outside Zojoji temple in downtown Tokyo to bid farewell to Abe, whose nationalistic views drove the governing party’s conservative policies.

Mourners took photos and some called out “Abe san!” as a motorcade with the hearse carrying his body accompanied by his widow, Akie Abe, slowly drove by the packed crowd.

“I believe there were many things he left unfinished as a politician,” public broadcaster NHK quoted Akie Abe as saying. “But he planted many seeds and I’m sure they will sprout.”

Abe’s long-time ally and mentor, Finance Minister Taro Aso, described him as “the most talented politician in postwar Japan who raised Japan’s international profile.”

About 1,000 people, including Prime Minister Fumio Kishida, governing party leaders and foreign officials, attended the funeral at the temple.

Taiwanese Vice President Lai Ching-te also attended in a private capacity, Taiwan’s Central News Agency reported, prompting a formal protest from China. Beijing considers Taiwan a breakaway province and objects to any expression of its independent political identity.

The hearse traveled through Tokyo’s main political district, Nagata-cho, where Abe spent more than three decades after being first elected to parliament in 1991. It then drove slowly by the governing party headquarters, where senior lawmakers in dark suits stood outside and prayed, before heading to the prime minister’s office, where Abe served a total of nearly a decade.

Kishida and Cabinet members pressed their hands before their chests as they prayed and bowed toward the hearse heading to a crematorium.

On Sunday, two days after Abe’s killing, his Liberal Democratic Party and its coalition partner won a landslide victory in elections for the upper house, the less powerful of parliament’s two chambers.

That could allow Kishida to govern uninterrupted until a scheduled election in 2025. But Abe’s death also opens up a period of uncertainly for his party. Experts say a power struggle within Abe’s party faction is certain and could affect Kishida’s grip on power.

Kishida has stressed the importance of party unity after Abe’s death.

Abe’s assassination has shaken Japan, one of the world’s safest nations with some of the strictest gun laws.

The suspect, Tetsyua Yamagami, was arrested on the spot Friday and is being held at a local prosecutors’ office for further investigation. They can detain him for up to three weeks while deciding whether to formally press charges.