The San Diego Police Department has ordered evacuations in the Ocean Beach neighborhood of San Diego, California, following a gas leak report at 6:50pm Monday, according to reports. The source of the leak remains unknown.

More than 200 people are evacuating the area of Bacon Street and Del Monte Avenue, according to officials, local NBC-affiliate KNSD reports.

A 70 percent gas reading was found near a sewer man hole by a San Diego Gas and Electric technician, KNSD reported, but because the source is unknown, the evacuation order is indefinite.

One resident posted a video on Twitter of a police helicopter flying over.

"San Diego Police Department: All residents between 4900 and 5000 El Monte and Santa Cruz need to evacuate their residence for a gas leak," the public announcement blared over the beachfront town.

Nat. gas smell in OB prompts evacuations around Bacon & Santa Cruz. SDFD working to figure things out. @CW6SanDiegopic.twitter.com/0iywPPE4UW — John Carroll (@johncarrollcw6) August 23, 2016

100s of OB residents won't be able to return home 4 hours due to nat.gas leak. Latest, live at 10 on @CW6SanDiegopic.twitter.com/fUSuLi37Mv — John Carroll (@johncarrollcw6) August 23, 2016

The evacuation order on Ocean Beach residents will stand for six to eight hours, according to CW6 San Diego reporter John Carroll.