Mumbai, Aug 12 - An official of the Federal Bureau of Investigation (FBI) Wednesday told the special court hearing the 26/11 case that 10 terrorists, including Ajmal Amir Kasab, had come to Mumbai from Karachi to carry out the attacks.

The forensic expert, whose identity has been kept under wraps, said that he had examined five Global Positioning System (GPS) devices and a satellite phone which the Mumbai police had recovered from the terrorists, all of whom, barring Kasab, had been killed by the security forces.

Data obtained from the GPS systems proved that the terrorists had travelled from Karachi to Mumbai, said the FBI official, deposing in person before Judge M.L. Tahaliyani.

One of the GPS sets recovered from Taj Hotel, one of the buildings attacked during the Nov 26-29, 2008 carnage, showed various locations of Mumbai and Rawalpindi.

The witness gave hard and soft copies of the data report submitted by him to the Mumbai police earlier.

It is reliably learnt that more US nationals are expected to testify in the court via videoconferencing. The services of Mahanagar Telephone Nigam Limited had been sought to provide infrastructure to enable this.