Detectives investigating a series of sex attacks on women at Butlins in Bognor want to speak to a Romanian asylum seeker in connection with the inquiry.

Petru Samfira, who has been working at a Rolls-Royce factory, is thought to be the man seen on CCTV riding a bicycle away from the holiday camp on the night of the last attack.

One woman claimed she was raped and three others reported indecent assaults in or near the popular holiday resort. All the women were in their early twenties.

The cyclist was spotted in bushes close to the perimeter fence by security guards who stepped up patrols of the area with police. The man was challenged but fled.

Officers searched a mobile home at the Riverside caravan park in Bognor where Samfira, who worked for Rolls-Royce at Goodwood, had been living until Wednesday. Police have yet to trace him but said he was thought to have connections to Harlesden, north west London.

Detective Inspector Tony O'Donnell, leading the inquiry codenamed Operation Magellan, said: "It's been a week now since the last attack in and around Butlins in Bognor. The attacks have ceased but we are progressing our investigation inside and outside of the Butlins complex.

"We now need help from the public to trace the man on the bicycle who was seen on CCTV leaving Butlins on Wednesday August 21."

The first attack happened on August 10 when a woman said she was raped just inside the grounds of the Butlins camp.

The second attack was four days later when a woman told police she was indecently assaulted, again just inside the perimeter of the camp.

On August 18, a third woman reported to police that she had been assaulted by a man.

Sussex Police said the fourth attack, in the early hours of Tuesday, happened in the grounds of the camp when a man grabbed a woman, kissed her and then pushed her on to a bench. She managed to struggle free.

One of the victims was a guest at the camp. The other three were local, two of them with connections with the camp. It is not thought any of the victims knew each other.

Last week staff at the camp were questioned after it emerged 100 workers fitted the description of the attacker, said to be white or tanned in appearance, 5ft 8in tall, slim with very short mousey brown hair.

Anyone with information is asked to contact Sussex Police on 0845 60 70 999.