Russian parliament urges tighter security for diplomats

FILE - In this Monday, Dec. 19, 2016 file photo, Mevlut Mert Altintas shouts after shooting Andrei Karlov, right, the Russian ambassador to Turkey, at an art gallery in Ankara, Turkey. At first, AP photographer Burhan Ozbilici thought it was a theatrical stunt when a man in a dark suit and tie pulled out a gun during the photography exhibition. The man then opened fire, killing Karlov. (AP Photo/Burhan Ozbilici) (The Associated Press)

Members of a Turkish forces honour guard carry the Russian flag-draped coffin of Russian Ambassador to Turkey Andrei Karlov who was assassinated Monday, as an officer, left, holds his picture during a ceremony at the airport in Ankara, Turkey, Tuesday, Dec, 20, 2016. Turkey and Russia are more committed than ever to advance peace efforts in Syria, the two countries' foreign ministers declared Tuesday, a day after the killing in an attack both countries described as an attempt to disrupt their improved ties. (AP Photo/Emrah Gurel) (The Associated Press)

Marina, the wife of Russian Ambassador to Turkey Andrei Karlov who was assassinated Monday, holds flowers during a ceremony at the airport in Ankara, Turkey, Tuesday, Dec, 20, 2016. Turkey and Russia are more committed than ever to advance peace efforts in Syria, the two countries' foreign ministers declared Tuesday, a day after the killing in an attack both countries described as an attempt to disrupt their improved ties.(AP Photo/ Emrah Gurel) (The Associated Press)

The lower chamber of the Russian parliament calls for heightened security measures for Russian diplomats abroad following the assassination of the ambassador to Turkey.

The State Duma voted on Wednesday on a resolution that condemned Monday's killing of Andrei Karlov and urged authorities to take extra steps to protect Russian diplomats abroad.

Investigators from Turkey and Russia and hunting for clues in the assassination of Karlov, who was shot in front of stunned onlookers at a photo exhibition in Ankara. Both Russia and Turkey have vowed that the assassination would not derail efforts to repair bilateral ties.

The killing came after days of protests by Turks angry over Moscow's support for Syrian President Bashar Assad and Russia's actions in Aleppo.