UN investigators probing the killing of former Lebanese Prime Minister Rafik al-Hariri have identified a number of people who may have been involved or known about it, Belgian prosecutor Serge Brammertz reported on Thursday. New information about a van used to blow up Hariri and 22 others in Beirut in February 2005, about mobile phones used to track him, and about Hariri's political activities had helped to pinpoint suspects, he said. The report said the Mitsubishi van in which a suicide bomber is believed to have set off some 1,800 kg. of explosives was stolen in the Japanese city of Kanagawa in October 2004, then shipped to the United Arab Emirates. From there it was sent in December to a showroom near the northern Lebanese city of Tripoli and sold. The UN team "has recently acquired information regarding the sale of the van to individuals who could be involved in the final preparation of the van for the attack," Brammertz said.