PORTLAND — The jury in William Hanaman’s murder trial is expected to resume deliberations this morning in Cumberland County Superior Court, after working on the case for about two hours Monday without reaching a verdict.

Hanaman, 52, is charged with killing his girlfriend, Marion Shea, on Nov. 10, 2009.

Prosecutors say Hanaman repeatedly stabbed Shea, a 47-year-old mother of five, during a fight in Hanaman’s apartment on Ocean Avenue.

He has claimed during the trial that Shea came at him with the knife and he stabbed her in self-defense.

The trial opened a week ago. Hanaman testified Friday in his own defense. If he is convicted, he will face a sentence of 25 years to life in prison.

The jury began deliberating around 2 p.m. Monday, after closing arguments by the prosecutor, Assistant Attorney General Leane Zainea, and Hanaman’s lawyer, Robert Levine.

At 4:15 p.m., the jurors sent a note to Justice Thomas Warren, telling him they intended to adjourn for the day and resume their talks this morning.