HALIFAX -- Police in Halifax say a 45-year-old man faces charges after four incidents of arson.

Police say a porta pottie was destroyed in a fire over the noon hour Monday at a construction site on Alumni Crescent.

At 6 p.m. a sport utility vehicle was set alight and destroyed along the 1300 block of Hollis Street.

Later, police reported minimal damage after a carport fire at a multi-unit building on Victoria Road and following a fire in a parked tour bus along the 1400 block of Hollis Street.

A suspect was arrested shortly after the bus fire after witnesses provided a physical description to police officers.