TORONTO - A man who worked at a middle school in Toronto has been charged with sexually assaulting a 13-year-old student.

Police say a 53-year-old man had allegedly been communicating with a 13-year-old student at Greenholme Junior Middle School from December to June.

Toronto police allege the man sexually assaulted the student during school hours between May 10 and June 5.

Police say the man has worked at the school for 15 years.

Martin Bartholomew of Mississauga is charged with sexual assault, sexual interference and two counts of assault.