The family of a Clydebank grandad who was found dead in a tent at Glastonbury festival have slammed the security firm he was working for.

The body of Martin Fallone, 64, was discovered in his tent on Sunday June 30 - and it has emerged he lay there for 30 hours.

He had been working with G4S as a security guard at the festival.

He is understood to have been working nightshift at the music festival, and the grandad-of-two later died of natural causes.

Now his son, William, has slammed his employers for failing to check on his father when he did not show up for work.

He says they are 'cold-hearted', and that their family are angry at the bosses' behaviour.

READ MORE: Fundraiser for family of Scot who died at Glastonbury

"We want answers from G4S," William told the Daily Record. "They’ve failed my dad and they’ve failed the family. We don’t want them to fail anyone else.

“It’s been very cold-hearted.

"We’re angry that no one checked up on dad for up to 30 hours.”

“We were surprised when my dad said he was ­staying in a tent.

“An employer shouldn’t be ­asking workers to stay in tents in this day and age.

"He’d done work trips before and they always sorted out accommodation.

"Dad didn’t even own a tent, so I borrowed one and organised an airbed for him.”

Martin travelled to Glastonbury shortly after working at Download festival, and had arranged to meet his son there.

And William said the last time he saw his father was when they said goodbye at 3am on the first night.

"I texted him in the afternoon because I didn’t want to wake him," he explained. “I tried contacting him again later but he never responded.

"It was very noisy and he was working so I wasn’t surprised.”

Paramedics said Martin died from a suspected heart attack.

After paying for Martin's body to be transferred to Scotland, they then told the family he had been missing for up to 30 hours.

The council’s ­environmental officer Marietta Gill wrote: “I do understand it is not uncommon generally for staff and volunteers to not turn up for their shifts but I would expect a good employer to make ­reasonable checks.

“I work closely with Glastonbury Festivals and have been encouraging them to ensure that all people are fully aware of what work they will be expected to do and are informed of how best to look after themselves in pre-event briefing.

“This year especially we were ­concerned about people who were expected to sleep during the day time, as it was so hot.”