WILLIMANTIC — Police say a string of shootings that left two people injured this week may be related, and they have arrested local man in connection with one shooting on Tuesday.

Officers responded to seven separate incidents throughout the week, the first one on Tuesday and the most recent on Friday, police said.

Detective Doug Glode said the department is "aggressively investigating the incidents."

A 16-year-old was shot in the arm on Tuesday, police said. The three people he was with were not injured. Jaime Padilla, 19, of Ash Street, was arrested and charged in the shooting, and he faces charges of first-degree assault with a deadly weapon and first-degree reckless endangerment, police said.

On Friday morning, police responded to Windham Hospital's emergency room where a 17-year-old was being treated for a gunshot wound to the leg. He was later taken to Connecticut Children's Medical Center in Hartford.

The injuries to the two teenagers were not life-threatening, police said.

The other incidents, four on Thursday and one more on Friday, did not involve injuries to any people.

The first report of shots fired on Thursday involved the Kingswood Apartments on Ash Street, police said, but officers found nothing.

A short time later, state police received reports of shots fired on Windham Center Road in Windham. Three juveniles in a vehicle at the apartment complex were detained but later released when nothing was found in the vehicle, police said.

In the third incident, officers responded to Church Street, where they found a heavily damaged vehicle. Another vehicle was stopped and two juvenile was taken into custody after a BB gun was found. Police did not say if they were charged.

In the fourth incident on Thursday, just before midnight, police responded to Ivan Hill Street and discovered several shots had been fired into a single-family home, police said.

Police said the final incident, on Friday, involved a report of a bullet hole in a home on Manners Avenue on Friday. Police said they confirmed that a bullet had hit the house.