Twelve portable loos at Prospecthill Road, Toryglen, were set alight.
Detective constable David Hardie, from Glasgow city centre CID, has appealed for witnesses to the "sickening" crime. He said: "The portable loos were placed there for disabled guests who were attending the Commonwealth Games at Hampden.
"Alternative arrangements will now have to be put in place. It is
sickening that mindless individuals carry out this sort of crime with no regard for the consequences."
Mr Hardie said the area was
relatively busy at the time of the fire around 5am yesterday with
people visiting the nearby 24-hour Asda store and drivers.
He said: "I would appeal to anyone who was in the area and saw anyone at or near the Portaloos to come forward."
Anyone with information is asked to contact Police Scotland on 101.