PITTSBURGH — A gas company is taking the blame for an explosion near Pittsburgh that reduced a home to a pile of rubble and injured five people.

Columbia Gas on Thursday said they failed to install a key piece of equipment in the home while workers nearby upgraded a gas main.

Workers didn’t realize the home was connected to the section of gas main that was being worked on, and a pressure regulator was never added to the home, said Mike Huwar, the company’s president. When the new system was engaged, the elevated pressure led to a leak and caused Wednesday’s blast, he said.

“Our customers deserve safe and reliable delivery of natural gas to their homes,” Huwar said. “We failed to deliver on our mission in this instance, and we are deeply sorry.”

Officials with North Franklin Township have barred the company from doing any work in the community until further notice. Officials said they also want Columbia Gas to pay for cleanup and repairs where the explosion happened.