After Texas and Oklahoma in the United States, 3 people have been killed in gun attacks in Iowa and Wisconsin.
Two people were shot dead by gunmen in front of a church in Iowa on Thursday night. One of the attackers was killed in a counter-attack by police outside Cornerstone Church.
At least five people have been seriously injured in a shooting at a cemetery in Graceland, Wisconsin.
Four people were killed in a gun attack in Oklahoma on Tuesday. The gunman was also shot dead by police. Last week, 19 students and two teachers were killed in a gun attack at a school in Texas. At least 10 people were killed by gunmen at a supermarket in Buffalo, New York, in early May.