A U.S. security team including FBI experts began inspecting evidence Thursday from the car bomb blast that targeted a U.S. Embassy vehicle this week in the first such attack in Lebanon in more than two decades, according to AP. Authorities have cordoned off the site of Tuesday's blast on a north Beirut highway which killed three passers-by and wounded 26 others, and a giant white tent was placed over the scene to preserve evidence. On Thursday, U.S. investigators began a «technical survey of the scene in the presence of Lebanese forensic experts,» a senior Lebanese security official said. The official, speaking on customary condition of anonymity in line with military rules, said the team included FBI agents who were flown in Wednesday, according to AP. Associated Press Television News footage filmed from a distance showed at least three people who appeared to be U.S. experts, one of them wearing white overalls and another dressed in dark blue. They were seen collecting evidence from the wreckage of several vehicles that were damaged in Tuesday's blast, including the armor-plated U.S. Embassy SUV _ the bomb's target.