PHOENIX - City of Phoenix crews are working to fill a sinkhole which restricted the northbound lanes of 15th Avenue just south of Thomas Road early Thursday morning.

City of Phoenix officials say the road should reopen by 8 a.m.

The sinkhole, about 4 feet wide and 4 to 5 feet deep, opened right in the middle of 15th Avenue.

A sinkhole, about 4 feet wide and 4 to 5 feet deep, opened right in the middle of 15th Avenue at Thomas Road, Aug. 4, 2016. 
A sinkhole, about 4 feet wide and 4 to 5 feet deep, opened right in the middle of 15th Avenue at Thomas Road, Aug. 4, 2016. 

Phoenix officials say a sewage leak caused the hole. Drivers had to use the left-turn lane to get around it.

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Authorities set up a barricade around it with flashing lights and caution tape. The southbound lanes of 15th Avenue were not effected, nor any homes or businesses in the area.