Browns quarterback Johnny Manziel is in trouble once again.

The former first-round quarterback is being investigated by police in Texas for an altercation between him and his ex-girlfriend.

The Fort Worth Police Department responded to a call around 2 a.m. Saturday, after receiving a phone call about a "possible assault," the Beacon journal reports. The police did not find the person who called, but did talk to a 23-year-old woman on the scene, who said she was the person involved in the altercation with Manziel.

The newspaper reports, Manziel has not been arrested, but the Fort Worth Police Department is "actively working" with Dallas police "to determine if a criminal offense occured."

The woman also told Fort Worth officers that she was concerned about Manziel's "well-being".

Although charges have not been filed, Manziel could face discipline from the NFL.

A Browns spokesman said the team had no comment.

This is the second time in the last few months Manziel has been implicated in a domestic altercation.

Manziel and Colleen Crowley were questioned by Avon police on October 12th after they were seen on the side of the road arguing. It was later known that they were fighting in the car, where Crowley accused Manziel of hitting her and pushing her head against the car window.

No arrests were made, and the NFL announced on Nov. 17 it wouldn't discipline Manziel under its personal-conduct policy after launching an investigation in which the league questioned Manziel and Crowley finding insufficient evidence.