More than 600 pounds of explosives was stolen from a pipeline worksite located in Marietta, Lancaster County, according to the Bureau of Alcohol, Tobacco, Firearms and Explosives.

The theft is believed to have occurred after April 13.

On Monday, the Gregory General Contracting Company reported the theft of about 640 pounds of dynamite and 400 blasting caps from a pipeline worksite, according to officials.

"The worksite security company did not discover the theft until Monday, after noticing that the trailer door was ajar with the locks missing," according to a news release.

The ATF is offering a reward of up to $10,000 for information leading to the recovery of the stolen explosives and/or the conviction of those responsible.

Anyone with information is asked to 1-888-ATF-BOMB. Tips can also be submitted by using the Reportit app, or by visiting www.reportit.com.

All tips will be kept confidential, officials said.