Updated

Authorities say a pedestrian was injured when a circular saw blade at a New York City construction site came loose, flew about 100 feet through the air and struck her.

The victim was hit in the leg Tuesday as she was walking in midtown Manhattan.

The blade, which is about 3-feet wide, is used to cut through concrete.

Police say it broke loose, flew up in the air and hit a tree before cutting a deep gash in the woman's leg. She was taken to a hospital. Her condition wasn't immediately known.

Police say the construction company was replacing a ruptured water main.

According to the New York Post, the Department of Design and Construction said in a statement the contractor was ordered not to use any saws until they were inspected and deemed safe.