A £50,000 reward has been offered to help detectives find the killers of a British policewoman gunned down as she answered an emergency call about an armed robbery.
Sharon Beshenivsky (38), a mother of three children and two step-children, was killed last week after she and fellow officer Teresa Milburn responded to a hold-up at a travel agency in the centre of Bradford.
Sharon Beshenivsky
Ms Beshenivsky died after being shot in the chest. Ms Milburn was shot in the shoulder in what police have described as an attempted murder.
West Yorkshire Police said Crimestoppers charity had now put up the reward for details that led to the arrest and conviction of those behind the shooting.
"It may be that you have some information which will help us but, for whatever reason, you are unsure about coming forward," said Det Supt Andy Brennan, who is heading the investigation.
"If your information leads to the conviction of the people responsible for this crime, then you could claim this reward".
On Saturday, officers arrested a man (19) in Birmingham, who is still being questioned at a police station in West Yorkshire.
Police refused to name him, but media said he was Yusuf Jama, one of three men named by officers as suspects wanted in connection with the murder.
Detectives said they were still trying to find two other men - Muzzaker Imtiaz Shah (24) and Mustaf Jama (25) - who were thought to be living in London.