The head of a Swiss company implicated in the Lockerbie bombing says he has been summoned to testify at the trial next Tuesday.
Edwin Bollier runs the Zurich-based firm, Meba, which prosecutors allege supplied the timing device used to set off the explosives on the Pan Am 103 flight.
The aircraft blew up over Lockerbie, Scotland on a flight from London to New York in 1988. All 259 people on board were killed. The trial of two Libyan suspects began last month in the Netherlands.
Bollier has already rejected the accusation that fragments of a timer found in the wreckage came from a Meba delivery to Libya. He also disputes one of the main bomb theories put forward by the prosecution. He says his company has uncovered errors in reports by forensic experts claiming that the explosives were hidden inside luggage smuggled on board the aircraft.
Bollier insists he has evidence proving that the explosives must have been placed directly on the fuselage of the aircraft.
swissinfo with agencies