A boy was captured on camera supposedly saving his choking friend's life – although some have suggested it was a joke.

The pair were walking along Hawkins Avenue in Gravesend when one stopped, looking like he was struggling to breathe.

Watch the moment captured on CCTV

His friend jumped into action and started to perform the Heimlich manoeuvre.

They then embrace in a hug and can be heard saying "I just saved your life, I just saved your life" before continuing down the street.

Sharon Taylor caught the moment on her house camera. She said: "I was sitting in my living room watching TV and you can see right out onto the driveway from my windows, so I saw them.

"At first I thought the boy was going to be sick so I was keeping an eye out. It wasn't until I watched back on the camera and saw he was choking.

"I was like 'oh my God, I did not see he was choking'. His friend looks back and his friend is starting to choke and he just got straight into action."

The 38-year-old added: "I think for someone their age, it is just amazing. Not everyone their age would know what to do. That boy's mum should be so proud of how he helped his friend.

"They carried on walking, but as they got two houses away started hugging again. It could have been a different story if he hadn't helped. I would have panicked because of the shock of it all."

It was recorded on Tuesday evening.

Sharon – who works as a community care worker and is first aid trained – did say some people had commented on her social media post claiming it was a joke and not real.

"It honestly did not look or sound like a joke to me," she said. "I would have helped but he seemed to have it under control."

According to the NHS website if somebody is choking you should first carry out five back blows. If that does not work, the guidance says to carry out five abdominal thrusts.