At least fifty people have been killed and dozens more injured in a mass shooting at the Pulse nightclub in Orlando, Florida.
Police have shot dead a gunman after he killed three people and injured 14 more in the US state of Kansas.
At least 20 people have been injured in a mass shooting near a golf course in San Bernardino, California.
Nine people have been killed and seven injured in a mass shooting at a community college in the US state of Oregon.
A gunman has killed two people and injured several others in a mass shooting at a cinema in the US state of Louisiana.