Police have drawn up a list of just under 50 people who may be linked to the deaths of five Ipswich prostitutes.

Police have drawn up a list of just under 50 people who may be linked to the deaths of five Ipswich prostitutes.

And they have revealed their six possible profiles of the killer:

A regular client - Women still working the streets of Ipswich have identified a number of "punters" who they believe could be responsible. These include the driver of a blue BMW who has been spoken to by police. The fact that Paula Clennell and Annette Nicholls are thought to have willingly met the killer at a pre-arranged location supports this theory.

Drug dealers or pimps - All women were drug-users who worked as prostitutes. Gemma Adams and Tania Nicol knew each other well and were known to share clients. If police can establish such common links between the five women it may emerge the murderer or murderers were disgruntled members of the vice community.

Taxi drivers - Police say it is clear the killer had access to transport along with extensive knowledge of the area's road networks. Drivers from Suffolk, Norfolk, Essex and Cambridgeshire are being checked by police.

Truck drivers - Felixstowe port, the second largest container terminal in Europe, is nearby and 10,000 lorries pass through it each week.

The bodies of Paula Clennell and Annette Nicholls were found en route to the port on Old Felixstowe Road.

As the killings appear to have stopped since the fourth and fifth discoveries on Tuesday, it seems possible the murderer has left the country - albeit temporarily.

A man on a mission - Early in the investigation prostitutes in Ipswich identified a "weirdo" known as "Uncle" as a key suspect.

It was said he would pick women up, not have sex with them but instead lecture them on Christianity. He has since denied any involvement in the deaths but it remains possible the person responsible is on a moral crusade.

Two or more murderers - Throughout the investigation officers have stressed they are looking for "a killer or killers". The frequency at which the bodies were discovered suggests that, at the very least, the murderer had an accomplice to help dispose of the bodies.

There are thought to be differences in which the women were killed which may suggest more than one person - maybe even a gang - is responsible.