A man is in custody after jumping over a White House fence while the first family was inside celebrating Thanksgiving, officials said. <br /> <br />Joseph Caputo scaled a fence on the North Lawn at 2:45 p.m., according to Secret Service Spokesperson Robert Hoback. The jumper was immediately apprehended and taken into custody. <br /> <br />According to two CNN photojournalists who witnessed the incident, the man was carrying an envelope, had on a blue shirt and white pants and was cloaked in an American flag. They said the officers who detained him had their guns drawn and were accompanied by K-9 units. <br /> <br />Though the White House issued an official "all clear" about two hours after the episode began, the north and south fence lines remained temporarily closed Thursday evening.