A secretive LA group has a new mission: paint untouched crosswalks

There's a mystery on the streets of Hollywood in Los Angeles.

A series of striped crosswalks suddenly appeared at a busy residential intersection, and the secretive group that claims it's behind the do-it-yourself project says it has more in the works.

"The city doesn't keep us safe, so we keep us safe," Crosswalk Collective LA announced on Twitter in a post that included photos of the freshly painted intersection at a four-way stop at Romaine Street and Serrano Avenue.