An Ivory Park policeman and a security guard have been fatally wounded in an apparent ambush in Tembisa on Saturday.The policeman, a warrant officer, was in the company of a security guard and a woman while travelling in a police vehicle when they were attacked at the corner of R562 and M57 in Elandsfontein near Tembisa.Police spokesperson Brigadier Vish Naidoo said the victims were attacked by an armed group of at least five men who were travelling in Small Utility Vehicle.“The suspects, who were armed with rifles, opened fire on the state vehicle, killing the policeman and the guard instantly. The motive for the attack is unknown at this stage,” Naidoo said. Gauteng police have mobilised the 72-Hour Activation Plan to trace down the suspects.“We appeal to anyone who may have information on the whereabouts of the suspects to please contact the SAPS. Tip-offs may be provided via MySAPSApp. All information will be treated with strictest confidence and callers may remain anonymous,” said Naidoo.