Dozens of people were injured and at least six people died in mass shootings as gun violence broke out at nightlife districts in half a dozen cities across the country over the Halloween weekend.
Police in Dallas, the site of the deadliest violence, said four people were dead and 15 are injured following a handful of shootings in a Dallas neighbourhood, a centre of music, restaurants and nightlife in the city.
Police in college towns such as Fayetteville, Arkansas; Birmingham, Alabama; and Newark, Delaware, also reported shootings at their nightlife districts over the weekend.