The German railway authorities have ordered further, more thorough tests on high-speed trains of the type involved in a crash last Wednesday which left one-hundred-and-two people dead.

The second round of tests was called after it emerged that there'd been no ultrasound examination of the wheels of the fifteen trains so far inspected.

Investigators have identified a broken train wheel as the most likely cause of the accident at Eschede in north Germany, when a train smashed into a bridge.

Rescue workers still toiling at the scene say there are no more bodies left in the wreckage.