People are queuing for over six hours in Las Vegas to donate blood

Over 50 people have been killed and over 500 injured in an attack on a concert on the Las Vegas Strip on Sunday night.

A 64-year-old white man was identified by police as the gunman behind the attack.

Strangers used guard rails to help carry victims to vehicles, which would then take them to hospital.

Following the attack, residents of Las Vegas waited in line to give blood at the United Blood Services, with queues stretching down the street.

Donations were carted in from external setups, so large was the supply.

People waited up to six hours in line, and social media was flooded with images of community:

The centre also prioritised some donors, based on demand:

People were also reported to be donating food, clothes and supplies to victims.

To see if you're eligible to give blood and to register as a donor in the UK, click here.

HT Mashable