The victims are expected to survive, police said. The violence came after Dupont Circle Park was reopened for Pride at the request of the D.C. government.

City authorities canceled an initial request to block off the site, an L.G.B.T.Q. gathering spot in Washington, D.C. But the National Park Service opted to close it.

Police in Washington, D.C., are investigating two incidents that left two teenagers with stab wounds and another person shot less than one hour apart while a Pride Month event that was taking place nearby on June 7.