The group is said to use empty plastic bottles as their target practice to sharpen their shooting skills.
Assistant Superintendent of Police (ASP) Juliana Obeng, Tema Regional Police Public Relations Officer, revealed this to the media in Tema on Sunday.
ASP Obeng said the Tema Regional Police Command had a tip off on Saturday at about 1600 hours that a group of five suspected armed robbers were busily having shooting rehearsals at the Ramsar site.
She indicated that the range was a novelty created by the robbers to enhance their criminal operations.
She added that a police patrol team was immediately dispatched to the place where the said robbers opened fire upon seeing the team.
The Patrol Team also returned fire killing one of them instantly while the others managed to escape.
The Police PRO said 72 catridges made up of Trust Super Halcon and A A catridges, and several empty plastic bottles were sighted.
ASP Obeng pleaded with the public to volunteer information on any person reporting to health facilities with gunshot wounds.
Meanwhile, a group of armed robbers on Saturday at about 0200 hours, a group of armed robbers attacked Sentuo Steel Company in the Tema Industrial area.
The robbers ASP Obeng said they attacked the security officers and ransacked offices and residence of Chinese expatriates residing on the same premises.
The robbers made away with unspecified amount of monies, mobile phones, ipads, laptops and other personal effects.