A second man has been charged after an assault on the Central Coast in May.

About 11.20am on Wednesday, a 24-year-old man was arrested at an address at Somersby.

He was taken to Wyong Police Station and charged with grievous bodily harm assault with intent and conceal a serious indictable offence.

The 24-year-old was granted strict conditional bail to appear at Wyong Local Court on Wednesday September 6.

EARLIER REPORT

Two men have been arrested after an assault on the Central Coast in May.

Police will allege a 23-year-old man sustained critical head injuries after he was assaulted at the front of a home on Wallarah Road, Gorokan, about 12.20am on Sunday May 28.

The man was airlifted to Royal North Shore Hospital and remains in a stable condition.

Following police inquiries a 23-year-old man was arrested at an address in Scone on Tuesday.

He was charged with cause grievous bodily harm to person with intent and was refused bail to appear at Muswellbrook Local Court today on Wednesday.

About 11.20am on Wednesday, a 24-year-old man was also arrested at an address at Somersby.

He was taken to Wyong Police Station and is assisting police with their inquiries.

Strike Force Trebbiano, comprising of detectives from Tuggerah Lakes Local Area Command, continues to investigate the incident.