OTTAWA - Arson is suspected to be the cause of an early morning fire at an Ottawa high school.

Fire crews went to Woodroffe High School (at 2410 Georgina Drive) at about 5:30 a.m. Wednesday after a receiving a call about smoke coming from the building.

Ottawa Fire Services says it was discovered that a box of paper located outside the school near an exit door had been lit on fire, but adds there was no fire inside the school.

More crews were dispatched to the scene, along with police, paramedics and hydro and gas workers and the fire was put out just before 6 a.m.

School board officials said the school would be closed Wednesday because of smoke in the hallways, but would reopen Thursday.

Fire officials say there were no injuries and damage to the building is estimated at $5,000. Police are treating the scene as a suspected arson case.