Syrian troops drive IS out of historic Palmyra

In this photo released on Thursday, March 24, 2016, by the Syrian official news agency SANA, a Syrian government soldier takes his position on hill at the entrance of Palmyra, central Syria. Syrian government forces recaptured a Mamluk-era citadel in Palmyra from the extremist Islamic State group on Friday, Syrian state media and monitoring groups said, as the fierce battle for control of the historic town entered its third day. (SANA via AP) (The Associated Press)

In this photo released on Thursday March 24, 2016, by the Syrian official news agency SANA, a Syrian government soldier takes his position inside a damaged palace, at the entrance of Palmyra, central Syria. Syrian government forces recaptured a Mamluk-era citadel in Palmyra from the extremist Islamic State group on Friday, Syrian state media and monitoring groups said, as the fierce battle for control of the historic town entered its third day. (SANA via AP) (The Associated Press)

In this photo released on Thursday, March 24, 2016, by the Syrian official news agency SANA, Syrian government forces deploy at the entrance of Palmyra, central Syria. Syrian government forces recaptured a Mamluk-era citadel in Palmyra from the extremist Islamic State group on Friday, Syrian state media and monitoring groups said, as the fierce battle for control of the historic town entered its third day. (SANA via AP) (The Associated Press)

Syrian state media and an opposition monitoring group say government forces backed by Russian airstrikes have driven Islamic State fighters from the historic central town of Palmyra, held by the extremists since May.

Government forces have been on the offensive for nearly three weeks to try to retake the town, which is home to famed Roman-era ruins and was once one of Syria's top tourist destinations.

State TV quoted an unnamed military official as saying that "the armed forces and groups of popular defense committees have fully taken control of Palmyra." The popular defense committees are militias allied with the government.

The Britain-based Syrian Observatory for Human Rights confirmed IS has lost the town, saying there were many deaths among the extremists.