North Berwick police arrested two people after an hourslong standoff triggered by shots fired at a residence Tuesday, the department said.

Officers arrested North Berwick resident Aiden Scott, 23, and his mother, Churi, police said in a written statement Tuesday evening. The department did not provide her last name in the statement.

Police approached the home on Shana Lane around 10 a.m., responding to a reported violation of a protective order “where the suspect had reportedly fired a weapon,” the department said.

But as officers approached, someone inside the home fired multiple gunshots toward them, the department said. They called for reinforcement from additional agencies.

A police standoff followed, closing Route 4 from Dennett Road to Buffum Road and asking travelers to avoid the area for the majority of the day, according to a Facebook post by the North Berwick Police Department. Members of the Southern Maine Special Response Team and Cumberland County Emergency Services surrounded the home, the department said.

“Over the next six hours, negotiators would work with both Scott and his mother in an attempt to have them exit the residence,” the department said.

Eventually, officers threw tear gas into the home, at which point Scott’s mother stepped out. She was charged with creating a police standoff and hindering apprehension or prosecution.

Scott exited the home around an hour later, the department said. He is charged with violation of a protective order, reckless conduct with a dangerous weapon and creating a police standoff.

All told, 10 agencies joined the North Berwick department, including law enforcement from Sanford, Berwick and South Berwick, police said.

We are so thankful for a peaceful resolution,” the department said.