South Africa police are hunting for a gang of armed robbers who blew up an armored cash-in-transit truck in busy traffic in Johannesburg, escaping with an undisclosed amount of money. Police spokesman Lungelo Dlamini said Sunday that police recovered the two vehicles used in the heist and are hunting for the suspects but no arrests have been made. The robbers, travelling in a BMW and a Mercedes-Benz, shot out the tires of the armored truck shortly before noon on Saturday as it was traveling toward Johannesburg's international airport, according to police. "The guards were forced out of the vehicle before the suspects blew their cash van up with explosives," the police said in a statement. "The suspects took an undisclosed amount of money in cash boxes and one of the guard's firearms. They fled from the scene in two vehicles."