UPPER MARLBORO, Md. (WUSA9) -- A 25-year-old day care worker has been arrested for allegedly abusing a three-year-old boy in Upper Marlboro, Prince George's County police said.

Authorities arrested D'Aira Thompson, 25, of Cheltenham, in connection with physical child abuse of a three-year-old boy at a day care center in Upper Marlboro. She is being charged with second degree child abuse, and second degree assault.

On Tuesday morning Thompson allegedly tried to restrain the boy in a chair. She told the boy to lay his head down and then slammed his head on the table, police said.

The young boy has a very bad bruise on his right side of his head. Police said Thompson is the boy's teacher.

Anyone with information on this case is asked to call the Prince George’s County Police Department’s Child and Vulnerable Adult Unit at (301) 772-4930. Callers wishing to remain anonymous may call Crime Solvers at 1-866-411-TIPS (8477), text “PGPD” plus your message to CRIMES (274637) on your cell phone, or go to http://www.princegeorgescountymd.gov/police to submit a tip online.