Photos: Blast at Dar Al Farooq Islamic Center in Bloomington

Gallery: Mohamed Omar, left, the executive director of the Dar Al Farooq Center Islamic Center in Bloomington, leads the afternoon prayers outside the police tape surrounding the center Saturday.

Gallery: A group of women took part in afternoon prayers led by Dar Al Farooq Islamic Center Executive Director Mohamed Omar Saturday outside the police tape surrounding the center. Bloomington police and federal authorities are investigating an early morning explosion at the community center.

Gallery: Police and federal authorities are investigating an early morning explosion Saturday at the Dar Al Farooq Islamic Center in Bloomington. No injuries were reported. One worshiper reportedly saw a pickup truck speed off.Saturday, Aug. 5, 2017, in Bloomington, MN. Here, as a press conference of support went on to the rear, law enforcement officers did a sweep of the area looking for evidence.

Gallery: Law enforcement officials investigate an explosion at the Dar Al-Farooq Islamic Center in Bloomington, Minn., on Saturday, Aug. 5, 2017. 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.

Gallery: Police and federal authorities are investigating an early morning explosion Saturday at the Dar Al Farooq Islamic Center in Bloomington. No injuries were reported. One worshiper reportedly saw a pickup truck speed off.Saturday, Aug. 5, 2017, in Bloomington, MN. Here, a boy with a basketball on his bicycle rode up to a press conference of support that was held around the noon hour.

Gallery: Law enforcement officials investigate an explosion at the Dar Al-Farooq Islamic Center in Bloomington, Minn., on Saturday, Aug. 5, 2017. 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.

Gallery: People make phone calls as law enforcement investigate an explosion at the Dar Al-Farooq Islamic Center in Bloomington, Minn., on Saturday, Aug. 5, 2017. 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.

Gallery: Police and federal authorities investigate an early morning explosion Saturday at the Dar Al Farooq Islamic Center in Bloomington.

Gallery: Police and federal authorities are investigating an early morning explosion Saturday at the Dar Al Farooq Islamic Center in Bloomington. No injuries were reported. One worshiper reportedly saw a pickup truck speed off.Saturday, Aug. 5, 2017, in Bloomington, MN. Here, Karen Willis of Bloomington brought flowers to the site and was clearly saddened as Candy Hazen, also of Bloomington, leaned into her to give her a hug as the women joined the Muslim community in offering support.

Gallery: Police and federal authorities are investigating an early morning explosion Saturday at the Dar Al Farooq Islamic Center in Bloomington. No injuries were reported. One worshiper reportedly saw a pickup truck speed off.Saturday, Aug. 5, 2017, in Bloomington, MN. Here, Karen Willis of Bloomington brought flowers to the site and offered them to members of the Muslim community in a show of support.

Gallery: An FBI investigator goes door to door, interviewing neighbors to the mosque bombing site.

Gallery: Police investigate a blast Saturday at the Dar Al Farooq Islamic Center in Bloomington.

Gallery: A woman listens as mosque spokespeople are interviewed by local media members.

Gallery: Law enforcement officials comb the scene of the bomb blast.

Gallery: Police and federal authorities look over the bomb site at the Dar Al Farooq Islamic Center in Bloomington..