21.   Military officials said they suspected it was a technical fault, but did not rule out an attack by separatist rebels fighting for a Tamil homeland.

22.   Military officials said they suspected a technical fault, but did not rule out an attack by separatist rebels fighting for a Tamil homeland.

23.   Officials blamed it on pilot error or a technical fault rather than on an attack by Tamil rebels.

24.   Officials said there had been a technical fault with the fire alarm and the fans were allowed back into the stands.

25.   One was shot down by rebel gunboats, and the other apparently crashed due to pilot error or a technical fault, the military says.

26.   Police said the bomb apparently went off later than expected due to an unspecified technical fault.

27.   The blast was caused by a technical fault in the steam system in the laundry room, the report said.

28.   The causes of the crash were not immediately clear, although there was speculation the aircraft experienced a technical fault.

29.   The broken-down Eurostar train had been a replacement for the original train, which developed other unspecified technical faults on the French side of the tunnel in Lille.

30.   The broken-down train had been a replacement for the original train, which developed other unspecified technical faults on the French side of the tunnel in Lille.