Iran says US strikes are a 'strategic mistake'
Iran has called US air strikes on Iraq and Syria a "strategic mistake" after 85 targets were hit across the region on Friday.
The US has launched retaliatory strikes in response to last week's drone attack on a US military base that killed three American soldiers.
The White House blamed the drone attack on an Iran-backed militia group.
The US and UK also launched a new round of joint strikes on Houthi targets in Yemen on Saturday.
Iran's foreign ministry said the strikes on Iraq and Syria "will have no result other than intensifying tensions and instability in the region".
Earlier, Iraq said the US retaliatory strikes would bring "disastrous consequences" for the region.
At least 16 people, including civilians, were killed as a result of the strikes, Iraqi officials said.
A spokesman for Iraq's prime minister said the strikes were a "violation" of his country's sovereignty and that they would impact "the security and stability of Iraq and the region".
While Syria said the US "occupation" of Syrian territory "cannot continue".
According to a US military statement, the US struck Iranian Revolutionary Guards Corps (IRGC) Quds Force and affiliated militias in Iraq and Syria.
Several US aircraft were involved, including long-range bombers that flew over from the US.
Seven locations were hit - four in Syria and three in Iraq - with more than 85 targets being struck, the US military said.
There have been no strikes on Iranian soil.
Since Friday's US strikes in Iraq and Syria, there has been one attack on American forces, a US defence official told the BBC's US partner CBS News.
The attack in question targeted US forces based at the Mission Support Site Euphrates in Syria using rockets, but no injuries were reported.
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