A naked man was allegedly seen committing a sex act in front of people eating lunch in a park.

In a post which has since been shared around Facebook and Twitter, Babs Nutcher warned others that she had seen the man taking his shorts off and behaving indecently at around 12.30pm on Monday.

She wrote: "I couldn’t believe what I was seeing."

He allegedly left the field and returned about five minutes later, where he allegedly took his shorts off again and committed a second sex act before "dancing and moving his body in a sexual way".

Kent Police has confirmed they are investigating.

She said the man put his shorts back on when another woman entered the field - which is near a children's play area - and that the incident was later reported to the police.

She added: "Please take care while walking your dogs or taking your children to Gillingham Riverside Country Park because this man definitely seems like he was getting a kick out of what he was doing and who knows what he might do next."

Police said they received a report that a man was seen acting indecently at Riverside County Park in Gillingham at 1.13pm on Monday.

Officers are assessing the circumstances and enquiries are ongoing.