Police are seeking Abdoulie Jobe in connection with a rape in the summer.
Investigating officers want to talk to Jobe, 28, as they believe he may have information after a rape at a house in Brighton on Saturday, August 28.
A man, earlier arrested, has been released without further action.
Jobe is also being sought in relation to two separate sexual assaults in July.
He is described as 5’8” with a slim build, an afro hair style and a black goatee beard.
Jobe is believed to have links to the Dorset area, as well as Sussex.
Anyone who may have information on his whereabouts is asked to report it online or call 101, quoting serial 1414 of 29/08.