Biden decries gun violence as shootings across US mar Fourth of July festivities

At least 15 people shot dead across the country in mass shootings so far on the holiday weekend celebrating the US's independence

A long holiday weekend of bloodshed has intensified after a heavily armed gunman in a bulletproof vest opened fire on the streets of Philadelphia on the eve of Fourth of July celebrations, in yet another mass shooting in the US, killing five people and wounding two boys before surrendering to the police.

Across the country, Texas was entering the holiday to news that another shooting had killed three people, in Fort Worth, occurring just before midnight amid a gathering in a parking lot that also wounded eight.