The government on Monday honored former Prime Minister Shinzo Abe, who was gunned down Friday in the city of Nara, with the Collar of the Supreme Order of the Chrysanthemum, the nation's highest decoration.

A wake was held later Monday for Abe, the nation's longest serving prime minister, at Zojoji Temple in Tokyo, with Prime Minister Fumio Kishida and other lawmakers attending. U.S. Treasury Secretary Janet Yellen, who is on a visit to Japan, also attended the ceremony, a Treasury official said.

Emperor Naruhito and Empress Masako sent flowers and dispatched a chamberlain to burn incense at the wake, according to Kenji Ikeda, vice grand steward of the Imperial Household Agency.