EAST HARTFORD, Conn. (WTNH) — More than three dozen catalytic converters were stolen from two East Hartford bus sites over the weekend, according to police.

The first bus site robbed was on Oakland Avenue, which Autumn Transportation owns. The regional manager confirmed that 26 catalytic converters were stolen from that site, which serves the Capitol Region Education Council (CREC) School district.

Joseph Piscitelli, Autumn Transportation’s regional manager, said the thefts would not impact buses, which ran on time Monday morning.

“It wasn’t a happy start this morning with 26 missing, so now we’re trying to get them replaced and up and running,” Piscitelli said. “Unfortunately, we didn’t have surveillance. The yard is fenced in, but the gate, as you saw, wasn’t closed.”

A dozen more catalytic converters were stolen from a bus site on Alna Lane, which First Student owns, police confirmed. A spokesperson from First Student also told News 8 that school bus operations were not impacted.

East Hartford police said 38 catalytic converters were stolen sometime between Friday and early Monday morning. Police have not said whether these incidents are connected nor released any information about possible suspects.

“Surveillance and security are two big things, so any type of surveillance systems or cameras that can be put out on the premise will obviously help, as well as a secure area,” East Hartford Police Department’s Public Information Officer Mark Caruso said.

Investigators said they are still reviewing some surveillance footage and other evidence.