Cape Town – Four men were arrested with firearms and police gear at a Sunninghill mall in Gauteng this week, with one of them having suspected links to Czech fugitive Radovan Krejcir and the murder of German businessman Uwe Gemballa.The group was confronted in the basement of The Core Shopping Centre on Thursday afternoon after security guards became suspicious of their vehicles, confirmed Gauteng police spokesperson Captain Kay Makhubele.Police were notified and began monitoring the parked Toyota Corolla and BMW they had left behind."When those guys went back to the cars, the police approached and searched them," he said.They found two rifles, a handgun, ammunition and SA Police Service reflector vests, a cap and radio, along with a few other items."We don’t know the motive of them being in the mall, but it appears they were on their way to commit a crime, but fortunately we had to stop them."Underworld tiesThe BMW was fitted with two number plates on top of each other. Makhubele said the second number plate belonged to another BMW.They had phoned the owner of this BMW, who had been driving his vehicle elsewhere.The men, aged between 30 and 40, were set to appear in the Randburg Magistrate’s Court on Monday on charges relating to impeding and impersonating police, and possession of unlicensed firearms.It was understood that one of them had ties to the underworld and already had a range of charges against him.When asked to confirm this, Makhubele told News24: "We understand they are wanted suspects, but don’t know what the cases are so far. An investigation will be done to verify what they are wanted for."Vehicles allegedly intended for use in a suspected criminal act. (Supplied) On Wednesday, Krejcir (convicted for drug dealing), his two former lovers Vanessa Naidoo and Marissa Christopher, three correctional services officials, and two men linked to his attempts to escape from a prison in Cullinan all appeared in Kempton Park Magistrate's Court side by side.An alleged associate of Krejcir managed to escape from the Palm Ridge Magistrate’s Court in March.Krejcir boasted of hitKagiso Ledwaba escaped just days before being sentenced. A court orderly was charged with allegedly helping him escape.Ledwaba and his co-accused, Garland Holworthy and Thabo Mohapi, had been convicted of theft and Gemballa’s murder and kidnapping.SAPS reflector vests found in suspicious vehicles parked at a Sunninghill mall. (Supplied) According to The Star, Gemballa was an associate of Krejcir and slain Teazers boss Lolly Jackson.A fourth accused, Thabiso Melvin Mpye, 29, entered a plea agreement with the State, in which he admitted to kidnapping and killing Gemballa shortly after he arrived in South Africa on February 8, 2010. Gemballa's body was found in a shallow grave in Pretoria in October that year.In March 2011, Media24 Investigations reported that Krejcir allegedly boasted to his private doctor that he was behind Gemballa's murder.When Ledwaba escaped, he was appearing on a separate matter.The Hawks offered a R100 000 reward at the time for info leading to his arrest but he remained at large.