WEST CHESTER, Pa. (AP) – Authorities say twin brothers detonated improvised explosive devices in Pennsylvania over two weeks, damaging several buildings.

Chester County District Attorney Tom Hogan says Daniel and Caleb Tate of Cochranville blew up a Highland Township mailbox in December and detonated an explosive in a wooded area in Londonderry Township.

Authorities say the twins also detonated explosives inside an Amish phone shed in Colerain Township, in a Strasburg Township produce shed, and inside a West Fallowfield Township well pump shed.

No one was in the buildings.

Both face charges including arson by explosion. A preliminary hearing is scheduled for next month.

Daniel’s attorney, Vincent DiFabio, tells The Philadelphia Inquirer his client is cooperating.

Caleb’s attorney, Robert Donatoni, says his client has accepted responsibility for his role.

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