Syrian Foreign Minister Walid Muallem has passed away at the age of 79, SANA news agency reported on Monday.

"The Ministry of Foreign Affairs and Expatriates mourns the death of Deputy Prime Minister and Minister of Foreign Affairs and Expatriates Walid Muallem," the respective statement said.

The cause of death was not disclosed.

Walid Muallem worked at the Syrian Foreign Ministry since 1964, and he served as the FM since 2006.