Dozens of young men dressed in mismatched army fatigues manned a checkpoint under cover of a bridge.

We knew where he was going and the men manning the checkpoint were told to look out for him, she said.

The attackers arrived in four civilian vehicles before dawn and opened fire on demonstrators manning the checkpoint.

When the taxi approached the front gate, the three jumped out and headed towards the entrance, opening fire at the two police officers manning the checkpoint as they ran.

At 6:40 he opened fire at the three soldiers manning the checkpoint and the driver of a civilian car, which had stopped at the checkpoint.