Donald Trump has spoken out on gun control again, saying that gun-free schools would invite "violence and danger."
The President made the comment on Twitter as he highlighted the progress being made on a range of policies surrounding schools and firearms in light of the massacre in Parkland, Florida.
The shooting at Marjory Stoneman Douglas school prompted a national outcry, with millions demanding Trump to take action. However the President has thus far ruled out banning guns outright, despite the pressure.
Trump tweeted that there has been a "very strong improvement and strengthening of background checks will be fully backed by White House.
"Legislation moving forward. Bump Stocks will soon be out. Highly trained expert teachers will be allowed to conceal carry, subject to State Law. Armed guards OK, deterrent!"
But he added: "If schools are mandated to be gun free zones, violence and danger are given an open invitation to enter. Almost all school shootings are in gun free zones.
"Cowards will only go where there is no deterrent!"
Trump has thrown his weight behind legislation to toughen up the background check system, and it has been announced that the Justice Department will provide grants to states that want to train teachers in carrying weapons.
Officials cited by Reuters have also said education secretary Betsy DeVos will examine a range of other proposals, including raising the minimum age of gun ownership from 18 to 21, and preventing people from buying weapons at gun shows without a background check.