From Tony John, Port Harcourt

A policeman attached to a  new generation bank yesterday shot dead a colleague and a yam seller in Port Harcourt, Rivers State.
The incident, which caused tension, attracted angry youths, customers and passers-by, who besieged the premises of the bank at Oil Mill bus stop, Aba Road, Port Harcourt, calling for the arrest of the killer cop.
When Daily Sun visited the bank at about 8:40am, the body of the policeman was inside the premises while that of  the yam seller was at the car park of the bank.
Eyewitnesses, who identified the deceased policeman, said he was attached to the Elelenwo Police Division in the state capital.
Some  aggrieved bank customers, who witnessed the incident, said there was no disagreement between the killer and the dead policeman.
It was further gathered that the yam seller was hit by  stray bullet.
Shortly after the incident, a team of armed policemen in mufti stormed the bank and arrested all the policemen and    private security  personnel.
The incident paralysed business activities at the bank.
At the time of filing the report, Police Public Relations Officer (PPRO),  in the State, Omoni Nnamdi, a Deputy Superintendent of Police (DSP), could not respond to his calls and text massages for confirmation.