A Saudi-led Arab coalition fighting Yemeni rebels announced Monday it was ending Qatar's membership as most Gulf countries severed ties with Doha amid heightened tension between the neighbouring states.

The coalition said the measure was due to Qatar's "practices that strengthen terrorism, and its support to (terrorist) organisations in Yemen, including Al-Qaeda and Daesh, as well as dealing with the rebel militias," according to a statement carried by SPA Saudi official news agency.