UPDATED: Three men have been arrested by detectives investigating a rape on The Level in the early hours of this morning.
Officers have increased patrols and presence in the area after receiving the report of the attack, which took place between 12.30am to 1.30am.
Earlier today, detectives appealed for witnesses or anyone who may have seen something suspicious in the area at the time to come forward.
At 1.30pm, they said three men had been arrested.
A 47-year-old man has been arrested on suspicion of rape, while a 19-year-old man and 20-year-old man were arrested on suspicion of conspiring to rape
The victim is receiving support from specially-trained officers.
Anyone with information should report it to Sussex Police online or call 101 and quote Operation Motto.
Alternatively contact CrimeStoppers anonymously on 0800 555 111.