Washington, D.C. ? Gen. David Petraeus slumped at the witness table Tuesday while testifying at a Senate hearing, and a spokesman said the general was likely dehydrated and jet-lagged from his travels.

Petraeus, 57, revived after a few seconds and left the room under his own power. After about 20 minutes he returned to the hearing room, but Sen. Carl Levin, the panel chairman, decided to postpone the hearing.

“It appears he was maybe a little jet-lagged, dehydrated certainly,” said Petraeus’ spokesman, Col. Erik Gunhus.