The Islamic State (IS) militant group say its Yemeni affiliate carried out a car-bomb attack at a funeral attended by Shia Houthi rebels in the capital.

Dozens of people were injured, reports say. An unconfirmed report says many people were killed.

The blast happened near a military hospital in Sanaa on Monday night.

It is the latest attack by IS against Houthis in Yemen, where the Sunni extremist group declared its presence in November.

Houthis have been fighting forces loyal to Yemen's exiled President Abdrabbuh Mansour Hadi for several months.

A Saudi-led coalition launched air strikes in March, claiming to target Houthi positions. The strikes have had a devastating impact on civilians.

In a separate development on Monday, the rebels said in a statement that they had launched a Scud missile across the border at a Saudi military base. They said the missile was fired "in response to the crimes of the brutal Saudi aggression".

If confirmed, it would be the second such attack since fighting began.

A Scud missile fired from Yemen earlier this month was shot down by Saudi Arabia before it could reach its target.