IS militants enter Palestinian refugee camp in Damascus

Islamic State militants have entered the Palestinian refugee camp Yarmouk in Damascus, activists and Palestinian officials say.

Clashes erupted between the militants and groups inside the camp, with IS seizing control of large parts of the camp, reports said.

The UN says about 18,000 Palestinian refugees are inside the camp.

IS militants have seized large swathes of territory in eastern Syria and across northern and western Iraq. This is the group's first major attack near the heart of the Syrian capital.

IS fighters had seized control of large parts of the camp, the UK-based Syrian Observatory for Human Rights, and an official with the Palestine Liberation Organisation based in Damascus, said.

Yarmouk residents said that members of Aknaf Beit al-Maqdis, a group formed by Palestinian militiamen opposed to the Syrian government, were leading the fight against the IS militants, along with some Free Syrian Army fighters.

Palestinian militiamen were able to retake some areas from IS later on Wednesday, residents said.

There has been no official statement from IS about the attack.