Saudi Arabia, the United Arab Emirates and Bahrain have said they are withdrawing their ambassadors from Qatar because Doha had not implemented an agreement among Gulf Arab countries not to interfere in each others' internal affairs.
The three countries said the move was necessary "to protect their security and stability".
According to a report published by Saudi state media on Wednesday, the decision to withdraw diplomatic envoys was made because Qatar did not implement a security pact about non-interference in the internal affairs of the other states that make up the Gulf Cooperation Council (GCC).
http://www.aljazeera.com/news/middleeast/2014/03/saudi-uae-bahrain-withdraw-qatar-envoys-20143591141945753.html