A fundraising page for the victims of the Las Vegas shooting has raised more than $2.2m (£1.66m) within hours of the attack.

Donations flooded in after at least 59 people were killed and more than 500 injured when a gunman opened fire on a music festival from the 32nd floor of the adjacent Mandalay Bay hotel.

Police have named the shooter as 64-year-old Stephen Paddock, who is said to have shot himself after carrying out the massacre.

The GoFundMe fundraising page was set up by Steve Sisolak, Chair of the Clark County Commission, to “provide relief and financial support to the victims and families of the horrific Las Vegas mass shooting”. Mr Sisolak said he was at the county’s main trauma clinic with victims and their families.

More than 30,000 people have donated to the fund, with many leaving messages of condolence for the victims.

“The unimaginable has reached Las Vegas”, wrote one. “My thoughts and prayers go out to everyone.”

Another said: “Prayers for the victims, family and friends of this heart-breaking and senseless terror attack. I am just sickened to know that another human being this evil could live among us.”

Las Vegas shooting – in pictures Show all 15 1 /15 Las Vegas shooting – in pictures Las Vegas shooting – in pictures People scramble for shelter at the Route 91 Harvest country music festival after gun fire was heard Getty Las Vegas shooting – in pictures People carry a person at the Route 91 Harvest country music festival after shots were fired David Becker/Getty Las Vegas shooting – in pictures People run from the Route 91 Harvest country music festival after gun fire was heard David Becker/Getty Las Vegas shooting – in pictures A handout photo released via Twitter by Eiki Hrafnsson (@EirikurH) showing concertgoers running away from the scene (C) after shots range out at the Route 91 Harvest festival on Las Vegas Boulevard EPA/Eiki Hrafnsson Las Vegas shooting – in pictures People lie on the ground at the Route 91 Harvest country music festival after hearing gun fire Getty Las Vegas shooting – in pictures A man in a wheelchair is taken away from the Route 91 Harvest country music festival after hearing gun fire David Becker/Getty Las Vegas shooting – in pictures People stand on the street outside the Mandalay Bay hotel near the scene of the Route 91 Harvest festival on Las Vegas Boulevard EPA/Paul Buck Las Vegas shooting – in pictures FBI agents confer in front of the Tropicana hotel-casino after a mass shooting during a music festival on the Las Vegas Strip Reuters/Las Vegas Sun/Steve Marcus Las Vegas shooting – in pictures Las Vegas police run by a banner on the fence at the Route 91 Harvest country music festival grounds after shots were fired David Becker/Getty Las Vegas shooting – in pictures An injured person is tended to in the intersection of Tropicana Ave. and Las Vegas Boulevard after a mass shooting at a country music festival Ethan Miller/Getty Las Vegas shooting – in pictures Metro Police officers pass by the front of the Tropicana hotel-casino after a mass shooting at a music festival on the Las Vegas Strip Reuters/Las Vegas Sun/Steve Marcus Las Vegas shooting – in pictures A woman sits on a curb at the scene of a shooting outside of a music festival along the Las Vegas Strip AP/John Locher Las Vegas shooting – in pictures A cowboy hat lays in the street after shots were fired near a country music festival in Las Vegas Getty Las Vegas shooting – in pictures Las Vegas Metro Police and medical workers stage in the intersection of Tropicana Avenue and Las Vegas Boulevard South after a mass shooting at a music festival on the Las Vegas Strip Reuters/Las Vegas Sun/Steve Marcus Las Vegas shooting – in pictures Sheriff Joe Lombardo (2-R) speaking during a press briefing in the aftermath of the active shooter incident on Las Vegas Boulevard EPA

In addition to donating to the fund and to the American Red Cross, authorities have asked people in Las Vegas to donate blood for the wounded.

The Las Vegas Metropolitan Police Department wrote on Twitter: “If you would like to donate blood for the injured victims of the Strip shooting visit the Labor Health & Welfare Clinic, 7135 W. Sahara.”

Isis claimed responsibility for the attack within hours of it taking place, saying the gunman had recently converted to Islam and was a “soldier of the Islamic State”.