Nine Daesh militants were killed in armed clashes in western Syria, the Syrian Observatory for Human Rights said.
Sky News quoted the observatory as saying Tuesday that clashes erupted between two Daesh groups as some of them tried to flee across the Turkish borders.
Among those trying to flee were a Tunisian and nine European fighters.
This is not the first time Daesh militants kill each other. In December, the observatory said Daesh had killed over 120 fighters in two months, mostly foreigners trying to return to their homeland.