Residents on evacuation alert after fire breaks out in Heritage Park in Mission, B.C.

A fire broke out in Fraser River Heritage Park in the Fraser Valley on Tuesday afternoon.

White smoke could be seen above the trees in the largest park in the City of Mission.

Clare Seeley with the City of Mission said the fire broke out just after 10:30 a.m. in a wooded area of the park.

It grew to about 0.8 hectares in size.

The fire forced the evacuation of more than 60 homes on Tooley Place and in Prentis Avenue, above the park.

Residents will be allowed to return home tonight but will be placed on evacuation alert, Seeley said.

Gordon Robinson with the BC Wildfire Service Coastal Fire Centre told Global News their crews are assisting the Mission Fire Department with two helicopters and a fire officer.

The helicopters are bucketing water to the blaze.

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Local fire officials confirmed almost every available firefighter was dispatched to the scene.

There is no word yet on the cause.

The fire is now under control and Seeley said Heritage Park will be closed for at least 24 hours and possibly longer due to the investigation.