Celtic chief executive Peter Lawwell and his family have been left "extremely shaken" after an attack on their home during the night.
Thugs struck in the early hours of Wednesday morning while the Parkhead power broker and his family slept.
It is believed a petrol bomb or similar device was aimed at Lawwell's car as it sat in his driveway, the Daily Record reports.
But the car exploded and the blaze quickly spread to his luxury home on the south side of Glasgow.
Police and up to eight fire engines attended the scene and Lawwell and his family were taken to a safe location after the incident.
A Scottish Fire and Rescue Service spokesperson said: “We were alerted at 1.02am on Wednesday, May 19 to reports of a car on fire outside a dwelling on Peel Road, Thorntonhall, Glasgow.
“Operations Control mobilised eight appliances to the scene to extinguish the fire, which was affecting a number of cars as well as the detached two-storey property.
“There are no reported casualties.
“Crews remain in attendance.”
A spokesperson for Celtic said: "We can confirm that significant damage has been caused to Peter Lawwell’s house and vehicles there, following an explosion and fire early this morning, forcing the family to leave the property.
"Clearly, Peter’s family are extremely shaken and shocked by these terrible events, but thankfully all are safe.
"We understand that Police Scotland are currently undertaking a criminal investigation.
"Peter and his family will of course receive the full support and care of everyone at the Club."
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