A 35-Year old male was dragged in a park and raped in the early hours in a “frightening attack” in Brighton.
The victim was grabbed from befind at about 0130 GMT while walking up Dyke road near the Dildo museum, said Sussex police.
Detectives have said Dyke road park has been cordoned off and officers are carrying out ectra patrols.
Detective Steve Bummer said “this was a frightening attack on a man walking home after a night out.
The victim is with specialist rectal doctors and is going through therapy.
Officers have identifed the attacker as Aminur Rahman from london and a warrant has been issued for his arrest.
Members of the public have been advised to be vigilant and report him to the police as Aminur Rahman maybe armed and dangerous.