Qatar's Emir Sheikh Tamim bin Hamad Al-Thani will attend a crucial summit of the Gulf Cooperation Council this coming week, Doha's foreign minister said on Sunday.

Speaking at a forum, Sheikh Mohammed bin Abdulrahman al-Thani said Qatar's leader had accepted the invitation to attend, amid the region's worst political crisis in years.

"I will attend the ministerial council tomorrow and the emir will attend the summit," said the minister.