Bangor police arrested a man Friday morning after he allegedly assaulted his girlfriend.

Officer Robert Hutchings reported that at about 11:30 a.m. he was dispatched to a Fifth Street apartment building, where an assault was reported to be in progress.

When he arrived, Hutchings said, dispatch informed him that residents on the first floor were reluctant to open the door, which was locked. Hutchings broke a window next to the door and reached in to unlock it.

At the top of the stairs, Hutchings said, he met a woman who was shaking and crying. The woman allegedly told Hutchings that her boyfriend, William Butler, had assaulted her.

The woman said she had just come back from Acadia Hospital and had told Butler that she had flirted with another man while there. She said Butler became angry and made a fist, then punched her twice on either side of the head.

Hutchings said he could see red marks on the woman’s head. Officer Larry Morrill arrested Butler on a domestic assault charge.

Bangor police got two for one at the Main Street Irving station early Friday, when they arrested two people in the same truck for OUI.

Officer Ed Mercier reported that at 4 a.m. he was dispatched to the convenience store for a complaint of an intoxicated female driving a green pickup. On arrival he found a green truck, its headlights off, backing toward the building.

Mercier stopped the truck and spoke with the driver, David Sargent. He had slurred speech, heavy eyelids and bloodshot eyes. Mercier said Sargent was unsteady on his feet, but Sargent told Mercier, “I do not drink.”

Sargent performed poorly on sobriety tests. Mercier said he asked Sargent who had driven the truck to the store. Sargent told him, “Helene drove here, and she was not able to drive home.”

Sargent was arrested on a charge of operating under the influence.

Mercier then spoke with the passenger, Helene Harrison. She appeared very lethargic, and “nodded off” as Mercier spoke with her. Mercier said Harrison’s speech was slurred, and that he could smell alcohol on her breath.

Harrison denied drinking, Mercier said. Mercier could not perform a “gaze test” on her because her eyes kept closing; she did not do well on other sobriety tests.

A witness told Mercier he saw Harrison drive the truck into the store lot, then drive around it erratically. The man told Mercier he saw Harrison get out, then saw Sargent get out of the passenger’s seat, lean over and vomit. Sargent then got into the driver’s seat, the witness said.

Harrison also was arrested on a charge of operating under the influence and later charged with operating without a license.

Mercier said Sargent’s blood alcohol content registered 0.0 percent at the station, so Maine State Police Detective Brian Strout was called to do a drug test.

– Compiled by NEWS reporter Isaac Kimball