An investigation is underway after 4 people died when 2 aircraft collided mid-air near Grasmere in Gauteng, on Monday night. The South African Civil Aviation Authority says its members were still on the scene yesterday afternoon, to collect evidence. - Smile 90.4FM

An investigation is underway after 4 people died when 2 aircraft collided mid-air near Grasmere in Gauteng, on Monday night. The South African Civil Aviation Authority says its members were still on the scene yesterday afternoon, to collect evidence.