Biden urges assault weapons ban after Super Bowl parade shooting

US President Joe Biden has called on Americans to back his call for Congress to ban assault weapons, saying that a deadly shooting at a Super Bowl victory parade in Kansas City "cuts deep".

"Today's events should move us, shock us, shame us into acting," Mr Biden said in a White House statement.

He called on Americans to "make your voice heard in Congress so we finally act to ban assault weapons, to limit high-capacity magazines, strengthen background checks, keep guns out of the hands of those who have no business owning them or handling them."

One person was killed and multiple children were among 21 injured after a mass shooting at the Kansas City Chiefs' Super Bowl victory rally triggered panic among huge crowds of fans.

Police Chief Stacey Graves told a news conference three people were detained "and under investigation" in connection with the incident near the city's landmark Union Station.

Chief Graves said investigators had no known motive for the gun violence. Eleven of those hurt by gunfire or the ensuing chaos were children as young as six.

At least 22 people were struck by gunfire, one of them fatally, authorities said. Local radio station KKFI identified the victim as Lisa Lopez, one of its disc jockeys and host of the show Taste of Tejano.

Fifteen victims suffered life-threatening wounds, fire department chief Ross Grundyson said at a late-afternoon news conference.

As he has after so many previous mass shootings, Mr Biden called for enactment of tougher gun control measures.

Mr Biden said he and his wife "pray for those killed and injured today [Wednesday] in Kansas City, and for our country to find the resolve to end this senseless epidemic of gun violence".

Kansas City Mayor Quinton Lucas said the prevalence of