Police will allege a 32-year-old man went to a Berkeley home wearing a clown mask on Tuesday before using a large sharpened stick to attack a 29-year-old man who was known to him.

The man then allegedly used a knife to make further threats, before fleeing.

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The 29-year-old man sustained lacerations to his ear and was taken to hospital for treatment to his injuries.

Officers from Lake Illawarra Police District attended and commenced inquiries.

Detectives attended a property on Waples Road, Unanderra, about 2.30pm yesterday to arrest the 32-year-old man.

He was taken to Lake Illawarra Police Station and charged with assault occasioning actual bodily harm and armed with intent to commit indictable offence in relation to this incident.

It is further alleged the man sexually abused a girl in the early 2000s in the Illawarra region.

Earlier this month, Lake Illawarra Police detectives started investigating reports a girl had been sexually assaulted by a man known to her.

Police will allege the man abused the girl on an ongoing basis between 2002 and 2005, while she was aged between 10 and 13.

The man was further charged with six counts of aggravated sexual assault, victim under the age of 16 years.

He has appeared in Wollongong Local Court on Friday.

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