An imam of an east London mosque has been subject to death threats and intimidation for expressing his views on evolution and women's right to refuse the veil. Dr Usama Hasan, vice-chairman at Leyton mosque and a senior lecturer in engineering at Middlesex University, ceased delivering Friday prayers after 25 years of service when 50 Muslim protesters disrupted his lecture by handing out leaflets against him and shouting in the mosque for his execution. A statement from the secretary of the mosque, Mohammad Sethi, that was leaked to extremist websites, said Hasan had been suspended after his lecture resulted in "considerable antagonism" from the community and for his "belief that Muslim women are allowed to uncover their hair in public".