Yemen crisis: Fighting intensifies in Aden

Concern is growing over the number of casualties after heavy clashes between local militia fighters and rebel forces.
Witnesses have reported bodies lying in the street after rebel shelling and sniper attacks.
The fierce fighting has continued despite airstrikes on Houthi forces by a Saudi-led coalition.
Houthi rebels allied with troops loyal to the former President Ali Abdullah Saleh have reportedly advanced deeper into Aden to try and wrest control of the city from fighters loyal to President Abdrabbuh Mansour Hadi.
The BBC's Security Correspondent Frank Gardner says that if reports of rebel tanks entering the centre of the southern port city are confirmed, then the rebels will have consolidated their grip on the most important parts of Yemen.

Civilian deaths

As the fighting continues, there have been increasing concern about the number of casualties.
A spokeswoman for the aid agency Medecins Sans Frontieres (MSF) told the BBC that its hospital in Aden had received more than 500 injured people from all sides in the conflict over the last two weeks.
"The major injuries are gunshots and since the bombs we have some people with injuries linked to explosions," said spokeswoman Marie-Elisabeth Ingres.