WASHINGTON — The director of the Secret Service ordered an internal review of its security procedures around the White House after a man armed with a knife who jumped the fence at 1600 Pennsylvania Avenue on Friday night managed to make his way through the front door of President Obama’s home before being stopped, officials said Saturday.

Omar J. Gonzalez, 42, of Copperas Cove, Tex., jumped the black iron fence that surrounds the White House around 7:20 p.m. on Friday and ran straight to the North Portico door, the grand entrance that is flanked by white marble columns and faces Pennsylvania Avenue. He made it through the unlocked doors and was tackled immediately, said Ed Donovan, a Secret Service spokesman. Mr. Gonzalez was carrying a folding knife with a 3 ½-inch serrated blade, according to a criminal complaint filed in Federal District Court.

“Although last night the officers showed tremendous restraint and discipline in dealing with this subject, the location of Gonzalez’s arrest is not acceptable,” the Secret Service said in a statement Saturday afternoon.

Mr. Obama and his family had left the White House minutes before the incident, on their way to Camp David for the weekend, officials said. Mr. Gonzalez was arrested and then taken to George Washington University Hospital after complaining of chest pains, Mr. Donovan said. The officials said they had no reason to believe he was connected to any protest or terrorist group.