For the second time on Tuesday, MCFRS and B-CC Rescue Squad units have responded to a building on Arlington Road for the report of a suspicious odor.

Crews got the second call just after 2:40 p.m. for the odor in the 7400 block of Arlington Rd., home to a number of medical and professional offices.

Medical personnel are staging on nearby roads in case anybody feels ill. According to scanner traffic, first responders reported to the same building on Tuesday morning and WSSC crews have been working in the area.

Expect delays on Arlington Road.