The Muslim Brotherhood, one of the most powerful political entities in the Middle East, has rallied around Iran in the wake of Israel’s devastating strikes on the country and urged disparate Muslim groups to unite and “confront the Zionist entity”.

In a letter addressed to Iran’s Supreme Leader Ayatollah Ali Khamenei on Wednesday, the acting head of the movement, Salah Abdel Haq, said his group expressed “full support” for the Islamic Republic as Israel’s assault stretched into a second week.