Twelve killed and 300 injured in attack on airport in Saudi capital Riyadh

At least 12 people have been killed and more than 300 injured in Saturday's attack on King Khalid International Airport in Riyadh, Saudi Arabia

Four Saudis, two people from Bangladesh and one person each from the US, Jordan, Palestine, Syria, Sudan and Egypt were killed, the Saudi civil aviation authority says

"Everyone was running," an eyewitness who was at the airport says – video footage shows smoke rising after the attack

A Saudi-led coalition labelled the incident a "war crime" and has blamed Yemen's Houthis – who have not commented on Saturday's attack but did say they were behind separate strikes on the same airport on Thursday

This is the deadliest single attack on a Gulf Arab country since the war between Israel, the United states and Iran began in February, our Middle East correspondent writes

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In the Saudi capital, hospitals were overwhelmed with casualties.

Smoke billowed above the airport terminal and inside there was widespread damage.

This is the deadliest single attack on a Gulf Arab country since the war between Israel, the United states and Iran began in February.

The civil war in Yemen between the Houthis and the Saudi backed internationally recognised government has been going on for more than a decade.

But in recent weeks The Houthis which are supported by Iran have stepped up attacks against Saudi Arabia. President Trump called the attack terrible and said the US may now intervene.

It comes amid fears that the US and Israel might be about to resume strikes against Iran.

Efforts to secure a deal to end that conflict, which has sent shockwaves through the global economy, have come to nothing.

The Houthis have not commented since Saturday's attack but did say they were behind separate strikes on the same airport on Thursday that killed three people and damaged a plane.

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Shareclose panelShare pageCopy linkAbout sharingMatt SpiveyLive editor

At least 12 people have been killed and 309 injured in Saturday's attack on King Khalid International Airport in Riyadh, Saudi Arabia.

Four Saudi nationals, two people from Bangladesh and one person each from the US, Jordan, Palestine, Syria, Sudan and Egypt are among the dead, the Saudi civil aviation authority confirmed.

The authority added that some of the injured were "in critical condition".

A Saudi-led military coalition later vowed to respond to the attack, which it called a "war crime" and blamed on Yemen's Houthis.

The attack was the deadliest in the kingdom since May 2015.