Girls in rock pool indecently assaulted

A man who allegedly indecently assaulted a number of young girls at a rock pool at a NSW south coast town has been charged after onlookers stopped him from fleeing.

The 64-year-old man approached several young girls and talked with them at Kiama, before he allegedly indecently assaulted them on Tuesday afternoon, police say.

Bystanders confronted the man and detained him after he tried to leave until police arrived and arrested the man.

He was later charged with four counts of indecent assault of a person under the age of 16.

He has been remanded in custody awaiting a court appearance at Wollongong Local Court on Wednesday.