RUSSIA and Iran have said they will respond to further American military actions following the air strike in Syria last week.

In a joint statement the command centre for the two countries and allied groups said: "We will respond to any aggression."

4 Russia and Iran released a joint statement promising to respond to US aggression Credit: Getty Images

The statement read: "What America waged in an aggression on Syria is a crossing of red lines. From now on we will respond with force to any aggressor or any breach of red lines from whoever it is and America knows our ability to respond well."

The warning comes on the same day that:

4 US President Donald Trump delivers a statement on Syria from the Mar-a-Lago estate Credit: Getty Images

Iranian President Hassan Rouhani condemned "flagrant US aggression on Syria" following the missile strike on a Syrian air base in response to a suspected chemical attack by the Syrian government on innocent civilians.

The Iranian leader, a key ally of Syria's dictator Bashar al-Assad, called yesterday for an impartial investigation into the chemical attack that killed at least 70 people.

MOST READ IN NEWS 'WORST NIGHTMARE' Newborn mauled to death by 'jealous' dog who escaped from pen, says uncle LOCK UP With 9.2m already under local lockdowns & tough new rules we ask - where's next? TRAGIC DEATH Mum-of-13 who starred on TV's Extraordinary Pregnancies found hanged GRIM FIND Body discovered in search for missing girl, 14, who vanished from school Latest TYNE UP North East WILL lock down at midnight with curfew & ban on friends & family visits COLD HARD TRUTH How to spot the difference between coronavirus and a common cold

He warned that the American strikes in response risked escalating extremism in the region, reported Iranian state television.

In a phone call with Syrian dictator Bashar al-Assad, Rouhani told him: "Allegations that Syria launched the chemical attack were just a pretext to disrupt the Syrian peace process."

However, the evidence that the Assad regime carried out the horrific chemical attack is nearly overwhelming.

Autopsies confirmed there were chemical agents used in the bombing, which witnesses said was carried out by Syrian aircraft.

The international community has also backed President Trump's decision to retaliate with an air strike.

4 The diplomatic row was sparked by the US bombing a Syrian airbase, pictured, in response to Assad's chemical weapon attacks Credit: EPA

4 The strike was designed to warn Assad not to use chemical weapons on his citizens Credit: EPA

The Syrian state news agency SANA said Assad told Rouhani the Syrian people and army were "determined to crush terrorism in every part of Syrian territory" - a reference to the rebels who have been fighting his bloody rule for six years.

He also thanked Rouhani for Iran's support for "the Syrian nation".

In a speech on Sunday, Rouhani criticised US-allied Gulf Arab states for endorsing the missile strike.

He said: "Unfortunately, there are countries in our own region which encourage America's acts of aggression" before adding the warning: "Your turn will come too."

Saudi Arabia hailed the strike as a "courageous decision" by President Donald Trump and a Saudi ally, the United Arab Emirates, declared they also supported the action.

Both countries are part of the US-led coalition fighting ISIS in Syria.

We pay for your stories! Do you have a story for The Sun Online news team? Email us at tips@the-sun.co.uk or call 0207 782 4368