BOISE - A geothermal line break has shut down part of West Franklin Street near Boise High School, Boise police said Tuesday afternoon.

The closure is affecting West Franklin between 10th and 13th streets.

It appears that the break created a small sinkhole, and a steel plate has been placed over the hole.

Boise Public Works crews are on the scene.

It could be a while before the road reopens, police said in a Tweet that was sent out shortly before 3 p.m.