The Latest: Police Seek Cause of Minnesota Mosque Blast

An official from a suburban Minneapolis mosque where an early morning explosion occurred says the blast happened in the imam's office during the first prayer of the day. The Star Tribune reports that Mohamed Omar, executive director of the Dar Al-Farooq Islamic Center in Bloomington, says the center occasionally receives threatening calls and emails. Bloomington police Chief Jeff Potts said Saturday that investigators are trying to determine the cause of the blast. Authorities say the explosion damaged one room but it didn't hurt anyone. Asad Zaman, director of the Muslim-American Association of Minnesota, says the organization is offering a $10,000 reward for information leading to an arrest and conviction.