Police believe the bombing Sunday morning of an LDS Church chapel is connected with two failed bombing attempts earlier this year.

Provo police said a homemade bomb taped to the window of The Church of Jesus Christ of Latter-day Saints Grandview Stake 1st, 5th and 9th wards chapel, 1555 N. 1350 West, exploded about 4 a.m., shattering two windows and partially burning a drape.Neighbors reported hearing an explosion shortly after 4 a.m., but the damage was not discovered until about 8:30 a.m. when church officials opened the building. No injuries were reported. Because the chapel was littered with glass and to accommodate the police investigation, all three wards held services at another building.

Police Capt. Duane Fraser said the bomb was similar to a partially detonated bomb found two months ago taped on a window at the Orem City Library and an unexploded bomb found five weeks ago taped on a window of a south Provo office building. All three bombs had the same type of electronic detonating device.

"There are similarities in the components and in the way they were placed on the buildings," Fraser said.

Fraser said investigators believe Sunday's bombing and the two failed bombing attempts were random attacks. He said there is no evidence of a motive and investigators do not believe the bombing Sunday was specifically toward the LDS Church.

"There is certainly nothing to indicate that at this point," he said.

The latest bombing and the earlier attempts are being investigated by the Bureau of Tobacco, Alcohol and Firearms.