India, April 30 -- President Joe Biden has called on leaders in Congress to step up efforts to bring about law banning assault weapons and high-capacity magazines, require safe storage of guns, and pass universal background checks and a national red flag law.

Biden made this call in the wake of the mass shooting in Charlotte, North Carolina, where four law enforcement officers, including a Deputy U.S. Marshal, were killed while attempting to serve an arrest warrant on a fugitive in the city.

Charlotte-Mecklenburg Police Chief Johnny Jennings said members of the US Marshals Fugitive Task Force were met with gunfire from a "high-powered rifle" in front of the fugitive's home.

The gunman was shot to death as they returned fire.

"We must do...