Update: An armed standoff in Bucks County involving a New Jersey police officer is over after nearly 10 hours.
Our 69 News crew at the scene says the standoff between Clifton Township officer Richard Klementovich and police ended without incident a few minutes before midnight on Sunday.
The situation started at about 2:00 in the afternoon at the home of Klementovich's estranged wife on Bittersweet Drive in Doylestown.
Police say Klemntovich began firing at officers when they responded to the scene, and one officer was injured by shrapnel from one of the bullets.
That officer was treated at the hospital and released.
Earlier story: Police from across Bucks County are involved in a tense standoff with a fellow officer who opened fire on them with as many as 20 rounds Sunday afternoon. Authorities have a large area closed off around Bittersweet Drive in Doylestown Twp. Some neighbors were evacuated, while police are warning others to stay hidden in their basements.
Police identified the suspected shooter as Richard Klementovich, 42, a veteran officer with the Clifton Twp., N.J. Police Department. Authorities in Bucks County responded to his estranged wife's home at 1:44 p.m. for a "neighbor dispute" call. When officers arrived 15 minutes later, they said Klementovich opened fire on them.
"One officer has been injured by shrapnel," said Chief David Mettin of the Pennridge Regional Police. "Two police vehicles have been shot, and the armored personnel vehicle was also struck."
Authorities said the injured policeman, Doylestown officer William Doucette, was treated and released from an area hospital.
Police believe Klemnentovich is armed with up to 2,000 rounds of ammunition and several long range, sniper-style rifles. Authorities have not commented on a possible motive for the incident, but said negotiators from Bucks County and Klementovich's own department are on the scene.
Neighbors, now being kept more than a mile away from their homes, heard several rounds of gunfire.
"We heard gunshots," said neighbor Chip O'Connell. "Then, all the police were like, 'Get out, get out!'"
Neighbor Ronan Lucey added: "As we were talking, we hear three gunshots, and I just feel scared -- just hoping nobody's being hurt."
Neighbors closest to the gunfire were actually told to stay inside their homes, urged to hide in their basements.
"[My friends] have two SWAT snipers in their house and they got moved out of their house," said neighbor Sarah O'Hara.
Police said Klementovich's estranged wife and two children, ages approximately 4 and 6, are safe. O'Hara just babysat for the family on Saturday.
"It hasn't really been, like, a normal situation there, I don't think," she said. "They've been separated more than once, I believe."
Some neighbors said that police had responded to the home for domestic calls in the past, but Mettin would not confirm that Sunday.