Guns debate

US President Donald Trump endorses guns for teachers to stop shootings

He also said he would strengthen background checks on people buying firearms, and remove "gun-free" zones near some US schools.

Mr Trump was hosting a group of gun violence survivors at a "listening session" in the White House, as a student-led movement on gun control gains momentum.

The group also included survivors of other gun violence at US schools.

One student, Sam Zeif, said he was on the second floor at Marjory Stoneman Douglas High School in Parkland during the shooting there a week ago, which left 17 students dead.