Delegates at the ISPA conference at the Mandalay Bay in Las Vegas have started collecting donations for those who were first to respond to the worst mass shooting in modern US history, which occurred on the same site just two weeks ago.

The International Spa Association’s annual conference and tradeshow is taking place this week at the same hotel where the shooter launched his attack on 1 October, leaving 58 people dead.

Exhibitors, sponsors and attendees have been encouraged to drop off products, gifts and donations to a special donation centre in the hotel.

All donations need to be dropped off by 4 pm on Wednesday, 18 October.