Four employees of engineering firm Macmahon , including two Australians and a New Zealand , have been kidnapped in Nigeria ; a convoy of cars was ambushed , with the driver killed and others taken to a waiting boat . Kidnap - for - ransom is becoming an increasing issue in southern Nigeria , where gangs are targeting expatriate workers . Macmahon has an $18m a year contract with the United Cement Company of Nigeria Ltd (UniCem) for quarrying operations at UniCem's cement manufacturing plant at Mfamosing, near Calabar. The identity of the kidnappers is unknown at this time .
Four employees of engineering firm Macmahon , including two Australians and a New Zealand , have been kidnapped in Nigeria ; a convoy of cars was ambushed , with the driver killed and others taken to a waiting boat . Kidnap - for - ransom is becoming an increasing issue in southern Nigeria , where gangs are targeting expatriate workers . The identity of the kidnappers is unknown at this time .