World leaders observed a minute of silence on Sunday to remember the victims of terror attacks in Paris and Ankara at the start of a two-day G20 summit in the Turkish resort of Antalya.

"I am inviting you all to hold a minute of silence for those who lost their lives in terrorist attacks including in particular in Ankara and Paris," Turkish President Recep Tayyip Erdogan said, referring to the October suicide bombings in Ankara that killed 102 and multiple Paris attacks on Friday that claimed 129 lives.