The FBI are searching for a perpetrator who threw an improvised explosive device through the window of an imam’s office at the Dar Al Farooq mosque in Bloomington.
Police were called shortly after 5am on Saturday following reports of an explosion as worshippers prepared for morning prayers. The blast damaged a room and shattered windows, but no one was hurt.
Minnesota governor Mark Dayton on Sunday morning visited the mosque and described the bombing as a “criminal act of terrorism”.
He also described it as a “unthinkable, unforgivable” hate crime.
“What a terrible, dastardly, cowardly act was committed,” he said.
Meanwhile, Mr Trump came under heavy fire for staying silent on the issue.