Iberia Flight 6700 to Madrid with 250 souls on board returned safely to Caracas after 30 of flight due to an allegded bomb threat according to SAR Officers and the Control Tower of Maiquetía Airport.
The airplane landed at 19:00 CCS time, and was inspected, thereby ruling out the presence of an explosive device in the airplane.
One of the passengers twittered that the airplane returned to CCS and that the crew did not give any reasons: "After 30 minutes of flight, the National Guard ordered the return of the airplane. We've just landed in CCS".
The passenger also commented that fire trucks surrounded the airplane on the runway and that after waiting 20 minutes, they were notified that they had to deplane the aircrafgt without any hand luggage.
Source in Spanish: Here.