LAS VEGAS (AP) — Las Vegas authorities are calling for blood donations and setting up a hotline to report missing people in the wake of a mass shooting that injured more than 400 people and killed over 50 at a country music concert Sunday night.

Las Vegas police said Monday that it will take time to identify all of the injured and dead in what was the deadliest mass shooting in U.S. history.

The number to report missing people is (866) 535-5654. Police have also opened a “family reunification center” for people to find loved ones at 400 S. Martin L. King Blvd., in Building B.
Las Vegas police say anyone who wants to help can give blood at one of two locations in Las Vegas and nearby Henderson. A blood drive is also being planned.

Authorities say the gunman, 64-year-old Stephen Craig Paddock killed himself after the shooting. Police have not yet determined a motive.
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