Left: the graffiti message that was spray painted at 31-19 Newtown Ave. on Sunday. Right: the message that was written on March 20. View Full Caption Sen. Michael Gianaris' Office

ASTORIA — A building that houses the offices of two elected officials was vandalized with an anti-gay slur referencing President Barack Obama for the third time this month, officials said.

The words "Obama f----t" were spray painted on the outside of Pistilli Towers at 31-19 Newtown Ave. Sunday night, according to Sen. Michael Gianaris, whose offices are located in the building along with those of Rep. Aravella Simotas.

Vandals hit the property with the same message earlier this month, officials said. The first graffiti was scrawled in red letters and discovered on March 13, while the second appeared a week later written in blue marker, according to Gianaris' office.

The NYPD released surveillance footage of the suspect involved in the second incident, described as a man wearing a baseball cap and a jacket with its hood pulled up.

Police did not immediately have information on Sunday night's incident.

A photo of the third instance of graffiti released by Gianaris' office shows the words written in black spray paint.

Gianaris called the messages "disturbing."

"It is clear this bigot is trying send a message of intolerance to our community, but it will not work," he said in a statement. "It will take more than a bigot with a magic marker to stop me from fighting for the values of tolerance and inclusiveness."

The 114th Precinct will be increasing patrols around the building, according to Gianaris.

Police released this video of a suspect involved in the second vandalism incident on March 20. (Credit: NYPD)