First responders are on scene in Tel Aviv after a large explosion rocked the city in the middle of the night. The blast happened approximately one block from a U.S. embassy branch office. An explosion that rocked Tel Aviv overnight Thursday has left one person dead and several others wounded. Military officials say they believe the source of the explosion was a deadly drone attack, and Yemen's Houthi rebels have already claimed responsibility for a drone strike in the area near the U.S. embassy, the Associated Press reported. The drone was not intercepted despite it being identified prior to the explosion due to human error.