An explosion in North Haven, Connecticut injured eight police officers, reports CBS affiliate WFSB-TV, citing North Haven First Selectman Michael Freda. A large fire also broke out. Freda said none of the injuries appeared to be life-threatening.
North Haven police say they were investigating a domestic violence incident around 7 p.m. that led to a barricaded individual and the SWAT team being called in. There was a large explosion in a barn behind the house that prompted street closures.
Freda explained that police were responding to a report of a man barricaded in a house where he'd taken his wife hostage and that officers were trying to get him out when the explosion happened. State police said the suspect had not yet been apprehended and called it an active situation.
"It's quite surprising," Freda said. "This is a quiet residential neighborhood. It's been a very emotional scene."

A look at a home explosion in Connecticut on Wed., May 2, 2018.
WFSB-TV reporter Matthew Campbell wrote on Twitter that the suspect was still inside the home and that the fire was coming from another structure within the property. Campbell also reported that the wife was able to escape the house after being held for four days.
Police officials urge residents to avoid the area. Connecticut State Police and SWAT officers have responded to the scene.
Images from a WFSB-TV photojournalist show the scene and a large amount of flames:
One WFSB-TV reporter caught video of two people being taken away in handcuffs, but it's unclear what connection they may have to Wednesday night's explosion.
CBS News' senior investigative producer Pat Milton contributed to this report.