US-led attack

Syria and Russia condemn US-led attack on pro-Assad forces

Syria said the strikes were a "blatant attack on forces fighting terrorism", while Russia said they breached the country's sovereignty.

The convoy was hit on Thursday as it neared a group of US-backed rebels and a Western special forces unit in Tanf.

The US said Russia was told in advance and that warning shots were ignored.

Russia's Deputy Foreign Minister Gennady Gatilov said the strikes were "completely unacceptable", according to state-run news agency Ria Novosti.