Obama reiterates call for 'commonsense measures' to tackle gun violence

US President Barack Obama has reiterated his call for "commonsense measures" to reduce gun violence

Speaking on Gun Appreciation, he said that his Administration is taking 23 measures under its existing authority, but that Congress must join him in passing legislation to ensure a lasting impact.

President Obama has said he is in favour of a universal background check for anyone trying to buy a gun, and a ban on military-style assault weapons.