NORTH HILLS (CBSLA.com) — A robbery suspect was arrested after barricading himself for nearly four hours in a Budget Inn Motel Friday.

LAPD Mission Division officers were doing a follow-up investigation in the 9100 block of Sepulveda Blvd when they knocked on a motel room door, heard a barricade against the door and the sound of a shotgun and a shell being racked, authorities said.

The SWAT team was called in and shot tear gas rounds into the motel room.

“The officers and detectives did the right thing to contain the motel and call SWAT,” Capt. Todd Chamberlain said in a statement. “Time is on our side in these situations, and we use that time to bring these situations to a successful conclusion without any injuries or loss of life.”

The suspect, who was wanted for allegedly robbing his grandfather three times last month, surrendered around 11:25 a.m.

Susp has given up and being escorted out in cuffs—
LAPD Mission (@LAPDMission) January 04, 2013

The 27-year-old Hispanic man from Arleta has a record for drug use.

“We had been actively searching for Ramirez for the last week,” Capt. Chamberlain said. “This man’s behavior had escalated toward his grandfather in such a way that we needed to find him quickly.”