Stepping down after 10 years at the helm apples tim cook defending his decision to pull an app from the iphone Worldwide Exchange begins right now. Good morning. Welcome. Im Contessa Brewer in for Brian Sullivan crude prices as a result of news an oil tanker has caught fire. Well go live now to tehran. What news are you getting here who is behind it reporter good morning, contessa we dont know who is behind it right now. But the National Iranian company says that vessel that belongs to them has sustained damage to its hull after it was hit by two explosions within a half hour. Iranians are saying that this was an act of terrorism. They suspect the damage was caused by missile strikes. They say the ship was about 60 miles off the port city when the attack happened. Iranians are denying any serious damage they say two store rooms had been hit it has been contained now. Also that the crew on board are safe they are working to stabilize the ship there were reports that the ship was on fire