UN investigators have taken a statement from Lebanese President Emile Lahoud on the assassination of former prime minister Rafiq Hariri, the president's office says. Two investigators came to the presidential palace in Baabda on Friday evening to take the statement, the office said in a press release. In its interim report last month, the UN commission said Lahoud was not a suspect in the 14 February truck bombing that killed al-Hariri and 20 others on a Beirut street. But it said a suspect made a call to the president's phone minutes before the blast. "The president informed (the investigators) of the accurate information pertaining to what has been reported about phone calls to the presidential palace before and after the crime, in addition to rumours relating to the crime that were carried by the media," said the presidential statement. Officials close to the UN investigation said the investigators asked the president about communications and the chain of command in his office. The meeting lasted more than an hour, the officials said. Four Lebanese generals are under arrest and charged with al-Hariri's murder after the UN commission named them as suspects. One of the generals is the commander of the presidential guard and two others are close to Lahoud.