Several people were shot dead in a supermarket in the US city of Buffalo, New York, police said.
The shooter was reportedly taken into custody following the attack on Saturday afternoon.
The number of people injured at Tops Friendly Market on Jefferson Avenue has not yet been released and their condition is not immediately known.
Police did not respond to a request for more details after the Buffalo Police Department posted a tweet.
Governor Kathy Hochul tweeted that she was “closely monitoring the grocery store shooting in Buffalo,” her hometown.
She said state officials have said they will help local authorities.