A man in Paris attacked police officers with a hammer on Tuesday near Notre Dame Cathedral, and he was shot and wounded by police.
One officer has minor injuries, the BBC reports, while the assailant has been hospitalized.
Authorities are investigating the incident as a terrorist attack, NPR's Eleanor Beardsley reports.
"Paris is on alert after terrorist attacks in London over the weekend killed seven people," Eleanor says. "Paris police say the situation is under control."