Air strike on Yemen police building kills 20

At least 20 people have been killed and 15 others injured in an air strike by the Saudi-led coalition on a building used by police in the capital of Yemen, security officials said.
The officials, who are loyal to anti-government Shiite rebels known as the Houthis, said another 30 people are believed to be still trapped under the debris of the badly damaged building in central Sanaa.