A woman has been arrested for allegedly headbutting another woman at a children's party in Pembrokeshire.
Police were called to The Lion's Den indoor soft play centre in Haverfordwest at about 13:00 BST on Saturday following a row.
The play centre has apologised to its customers after what it called a "particularly distressing" incident.
Dyfed-Powys Police confirmed a 27-year-old woman was arrested on suspicion of common assault and later released.
Officers are continuing to investigate.
A statement by The Lion's Den said it had "never experienced this level of violence".
"We would like to apologise to all of our customers who witnessed a particularly distressing incident," it said.
The centre said two customers had a "disagreement" which allegedly led to one of them being headbutted.
It said that "type of behaviour" was "appalling at any time anywhere but particularly distressing during a children's party at a children's play centre".
The centre said it was working closely with the police and that a woman has now been banned from the premises.