Two brothers fought off and helped detain a 15-year-old armed intruder who tried to rob them early Wednesday morning in New London, police said.

A teen, wearing a hockey mask and carrying a knife and a loaded gun, invaded a home on Crystal Avenue just before 3 a.m. on Wednesday, according to police.

Richard and Kevin Dennis were asleep when the teen broke in, but woke up and acted quickly.

Richard went toward the teen.

"That’s when he hit me in the head with the gun. Then I picked him up and he started wailing on my back with the butt of the gun," Richard said.

Kevin got a gun to help his brother, and told the teen to drop his weapon and stay still.

"I heard my brother say, 'Kevin, I need help. He has a gun.' When I heard that, (I) grabbed my gun and went flying through the door," Kevin Dennis said.

The teen did drop his weapon.

"He dropped it the moment he saw me. I got mine. The fight was over. It was night and day," Kevin Dennis said.

When police arrived, they arrested the intruder.

The teen was charged with home invasion, burglary, second-degree assault with a firearm, first-degree threatening and carrying a pistol without a permit. His name has not been released because of his age.

The resident who was assaulted had minor injuries, but declined medical treatment, police said.