A commuter has thanked quick-thinking staff on the Northern line after he collapsed with a seizure.

Sam Suriakumar was looked after by several TfL staff members when he became unwell as he travelled home to Worcester Park.

They helped him off the train at Balham and cleared an area in a mess room for him to rest before an ambulance arrived.

The 33-year-old was taken to St George’s Hospital where he was told he had a brain tumour.

Shocked to hear of his diagnosis, the Northern line team has now gone one step further to help their passenger – they are taking part in Brain Tumour Research’s Wear A Hat Day with Flowers on June 19.

The charity works to raise awareness of the disease which kills more children and adults under the age of 40 than any other cancer.

It also funds research to find better treatments and, ultimately a cure.

Sam Suriakumar said: “I suffered what I now know was a grand mal seizure as I returned home from work in early February.

"It hit me out of the blue and I will remain eternally grateful to the people who came to my rescue- they saved my life.

"I can’t thank people enough for showering us with so much love, support and prayers.

"The difference which can be made by showing kindness, giving people your time and telling them you care is enormous.

"To learn that they are now supporting Brain Tumour Research is incredible and I am really moved by that.”

Northern line Trains Manager, Alexander Garnett-Scherer said the team had been very touched by Sam’s story and was “honoured” to support the charity

Customer Service Assistant James Kearney, who was among those who came to the passenger’s aid, said: “Sam seemed confused and withdrawn.

"He was reluctant for us to call an ambulance but our insistence that he needed emergency care was our most important intervention that day.”

To find out more about Wear A Hat Day with Flowers go to www.braintumourresearch.org