Video footage obtained by The Associated Press shows the main structure of 2,000- year-old iconic Arch of Triumph in Syria's Palmyra has been destroyed. Activists have said that Islamic State extremists, who are in control of the ancient city, blew up the arch.

The footage, which surfaced Wednesday, shows one pole of the arch still standing, but most of the arch — which stands at the top of a colonnaded street that runs through Palmyra — is in ruins. Activists said the militants blew up the arch on Monday.

It's the last among Palmyra's relics to be destroyed by IS since the group overran the city in May. IS destroyed the Temple of Bel and the smaller Baalshamin temple in August. It considers such relics to be promoting idolatry.