LAWTON, Okla. (AP) — Authorities in Oklahoma were investigating two separate police shootings Tuesday, including one in which a man was killed in Lawton after officers say he attacked them with a knife and cut one of them.

The second shooting involved a Tulsa officer who was wounded in the leg when a man opened fire as officers tried to question him about the license plate on the van he was in.

The Oklahoma State Bureau of Investigation is looking into the shooting in Lawton, about 90 miles (145 kilometers) southwest of Oklahoma City. Lawton police told state investigators that two officers we...