We all know what's it's like to be left without a seat on public transport.

But an elderly commuter in China's Nanjing city took matters into her own hands last week when she sat on a young man's lap after he refused to give up his seat her on train.

The video, filmed on September 5, shows a woman asking a young man to give up his seat, saying: "I am an elderly woman and this seat is for people who are unable to stand."

When the man refuses, she decides to sit his lap directly.

Bizarre footage has emerged from China of an elderly woman sitting on a young man's lap after he refused to give the seat to her on train.

The video, captured in Nanjing, Jiangsu Province on September 5, shows a woman forcing a young man to give his seat to her, as she says 'I am an elderly woman and the seat is for people who are unable to stand'.

After the man refuses her request, she sits onto his lap directly.