A hotel near Pearson International Airport was evacuated early Sunday morning, after a man allegedly set off a fire hose, leading to a small explosion in an electrical room.

The hotel, a Holiday Inn located at 970 Dixon Rd., sustained extensive water damage after a fire hose was left open, according to fire crews. Water damage occurred from the third floor of the hotel down.

Extent of the damage is currently unclear, but police estimate it is into the tens of thousands of dollars.

Police say that after someone opened the fire hose, the hotel’s sprinkler system was set off. This led to a malfunction in the electrical room, and an explosion leading to an electrical fire.

The fire broke out around 2 a.m., according to Toronto Fire.

Around 500 people were evacuated from the hotel, and approximately 30 taxis were made available to transport guests away from the hotel. Police say some were sent to other hotels in the area, while others returned home.

A Cambridge man, 35, has been arrested for mischief over $5,000. Police believe he was a guest at the hotel.