One man may have committed three recent bank robberies in the Washington area, law enforcement officers believe.

On Sept. 25, a man entered the SunTrust Bank on 4805 Bladensburg Road in Bladensburg, passed the teller a threatening note and verbally threatened the teller. The robber obtained money and then fled in a dark green Cadillac Escalade with unknown tags, authorities said.

On Nov. 17, a robber entered the TD Bank at 901 Seventh St. in Northwest Washington and passed the teller a note demanding money, according to the FBI. He left the bank after receiving money and was seen walking south on Seventh Street NW.

On Dec. 26, a robbery occurred at the SunTrust Bank at 624 H St. NW, which is near the TD Bank that was robbed the month before. In that incident, a man entered the bank, passed the teller a note and threatened the employee. The teller complied with the man's demand, and the man fled toward the Metro station entrance at Seventh and H streets NW, authorities said.

The robber has been described as a black male, 5 feet 8 inches to 5 feet 11 inches tall, and 140 to 170 pounds. In two of the robberies, the culprit wore at least one latex glove.

Anyone with information can contact the FBI by calling 202-278-2000.

Fifteen bank robberies occurred in the District in fiscal 2012, according to the FBI. Last week, the FBI announced that the agency has launched a national website dedicated to identifying unknown bank robbers.