HONOLULU (AP) - President Barack Obama is being kept up-to-date on terrorist threats facing the United States.
Security teams have briefed the vacationing president on developments in the investigation of a failed terror attack aboard a Detroit-bound plane.
Obama has directed that heightened airport security measures remain in place.
White House officials began their day at 4 a.m. in Hawaii -- 9 a.m., Washington time -- to prepare with counterparts across the government a briefing for Obama.
National Security Council chief of staff Denis McDonough in Hawaii, along with homeland security and counterterrorism adviser John Brennan and others in Washington, spoke with Obama at 6:20 a.m. by secure telephone conference call at the first family's rented vacation home.
The call lasted less than 15 minutes. Obama left immediately afterward for a trip to the gym.
Other traveling administration aides also were kept in a secure hotel room to receive briefings from investigators, to monitor developments, to feed updates to the president and to coordinate across agencies.