Joelle Dalgleish, 15, has died after a tree supporting her hammock fell on her while she on a camping trip.

A teenage girl has died after a tree supporting her hammock snapped in half and fell on her while she was celebrating a friend's birthday on a camping trip.

Joelle Dalgleish, 15, was sleeping at the Red Top Mountain State Park in Cartersville, Georgia on Saturday night when the tree fell.

She was immediately rushed to he hospital after she reportedly suffered a fractured skull, damaged spine and brain swelling, and was pronounced dead on Sunday afternoon.

Joelle's death has placed her entire high school in mourning and left painful memories for her friends who witnessed the tragedy.

'I was one of the girls sitting around the campfire and I saw the tree fall. I was the only one who saw it. The other girls were facing the other direction,' Joelle's friend Erin O’Reilly told WSBTV.

'We didn't know it hit Joelle so we went over there and asked, can you hear me?'

Speaking of the vigil held just hours after her friend's death, Erin said: 'She had already impacted so many lives, and this event impacts everyone so much more, just to make sure they hold on to everyone close. And just keep praying.'

Scroll down for video

Just hours Joelle was pronounced dead, her friends crowded in a building at the campsite, and teared up as they shared memories of the teen

The teenager has been described as a person with with an 'infectious laugh', who everyone loved

Just hours after her death, Joelle's friends crowded in a building at the campsite, sharing memories of the girl they've called 'one of the happiest people' who 'laughed easily.

'Joelle was one of the sweetest and happiest people you will ever meet,' said her track coach Kent Simmons, who trained Joelle for two years.

'She laughed easily and loved cracking a joke. Everyone loved her spirit and the way she could make you immediately feel comfortable around her. '

Joelle's mother wants her daughter to be remembered for her 'infectious laugh and a beautiful spirit and soul'.

A community vigil for the 15-year-old will be held on Monday night.