Concord police were called to a home in Hill, New Hampshire, early Saturday morning after a man broke into the residence and threatened to kill two people.
Police say Carl Grace, 48, of New Hampton, forced his way into the home of his ex-girlfriend with a fire extinguisher shortly after midnight.
Grace assaulted both his ex-girlfriend and her current boyfriend who was present at the home during the time of the break-in. Grace then threatened to kill the couple before fleeing the home to an unknown location.
Police are warning residents in the area because Grace is believed to be armed and dangerous.
Grace will be charged with second degree assault, burglary, simple assault and criminal threatening when police apprehend him.
The case remains under investigation at this time. Those with information regarding Grace's whereabouts is asked to contact Concord police.