The Swedish prime minister said the shooting of an anti-Islam campaigner just hours before a trial verdict was due on Thursday over his burning the Koran might be linked to a foreign power, and police arrested five people over the killing.

Salwan Momika was facing four counts of agitating an ethnic group and a trial verdict had been due the day after his death

An anti-Islam refugee who became infamous for publicly burning the Koran in Sweden has been shot dead hours before a court verdict on his controversial stunts.