Saudi Arabia and its allies have launched a military offensive including air strikes against Houthi targets in Yemen.

The Shia rebels have been advancing on the country’s second city of Aden, leading to fears that the whole country could soon be under their control.

Jordan has confirmed its involvement in the air strikes, while Saudi Arabia has reportedly mobilised tens of thousands of troops.

There are reports that planes from several countries were taking part in the operation: Egypt, Morocco, Jordan, Sudan, Kuwait, the United Arab Emirates, Qatar and Bahrain.

Forces loyal to President Hadi claim to have retaken Aden’s international airport after the rebels gained control of it and another airbase on Wednesday.

A Houthi-run TV channel has reported dozens of casualties in a residential area north of Yemen’s capital Sanaa, which is under rebel control.

Al-Masirah TV says they include women and children.

Explosions have been heard at the airport and in the city.

Iran i