Charges are pending against a 20-year-old man who assaulted an acquaintance with a chemical spray last night at the Towson Town Center.

The exact type of chemical spray has not been determined but it appears similar to mace or pepper spray, housed in a canister for personal protection.

Fire and Police Department personnel responded to the Towson Town Center in the 800 block of Dulaney Valley Road at about 8:15 p.m. for a report of a possible chemical irritant  in the mall, on the third floor. EMS personnel promptly evaluated about a half dozen people who had been affected by the irritant. One -- a pregnant woman -- was transported to The Johns Hopkins Hospital as a precautionary measure. Several other people refused medical transport, including the man who told police that the suspect deliberately sprayed him with the chemical.

This victim told police that the suspect -- a friend -- confronted him on the third floor of the mall and quickly pulled out a small canister, spraying him with the chemical.

Assault charges are pending against the suspect, who will be identified once he is formally charged.

Fire Department units cleared the scene by about 9:20 p.m.