GWANDA – Investigations into the deadly kombi explosion along the Bulawayo–Beitbridge Road have intensified, with authorities deploying a bomb disposal unit amid growing questions over the cause of the blast that killed at least 18 people. The tragedy occurred between 1 PM and 2 PM on Thursday near the Much Binding area, between Chipangali and the Gwanda tollgate, about 20 kilometres from Bulawayo.