Thames Valley Police is appealing for information following a racially aggravated assault in Chalfont St Peter.
A woman was pushing her young child in a buggy along a narrow path in Chiltern Hill at about 3.30pm on Sunday (4/3) when she became aware of a man walking behind her.
She turned slightly to let the person walk by, but the man then pushed his right elbow into her back, causing her to fall to the ground.
The offender then made racially abusive comments to the woman and threatened her.
The victim, a 38-year-old woman, sustained pains in her left leg but did not require treatment. She was left very shaken.
The offender is described as a man aged between 30 and 40 years old, about 6ft tall, with a large build.
He was wearing a black woolly winter hat which had a sign or writing on the front and was folded over at the sides and front.
He was wearing grey skinny jeans and a tight dark grey jacket with a worn fluffy hood and the zip done up.
The offender was carrying a shopping carrier bag with a small number of items in it.
Investigating officer PC Sarah Lansley, of Amersham police station, said: “This was an extremely distressing ordeal for the woman, who was with her young child at the time of the assault. She has been left very shaken.
“We have now launched an investigation and I would urge anyone with information that could help our investigation to contact us.
“Please call the Thames Valley Police non-emergency number, 101, quoting reference 43180067639.”
If you have any information relating to this case, please call 101 or contact Crimestoppers anonymously.