ANKARA, Aug 13 (Reuters) - Turkey, Saudi Arabia and Pakistan will form political and military mechanisms under a defence pact signed between the regional powers last week, Turkey's defence ministry said on Thursday, adding the alliance would also deepen defence industry cooperation.

The three countriessigned the "Mecca Joint Defence Agreement" on Aug. 7, wedding Sunni Muslim U.S. allies alarmed at a regional conflagration that has brought Iranian missile fire onto Gulf oil exporters. They said the accord stipulates that an armed attack against any member would be regarded as an attack on all, similar to NATO's Article 5 collective defence clause.

At a weekly briefing in Ankara, the ministry said the mechanisms would include the three countries' defence ministers, foreign ministers, and military chiefs. It added that the joint military exercises were also being planned under the pact, while cooperation could include joint production and technology sharing in the defence industry.

(Reporting by Tuvan Gumrukcu, Editing by Huseyin Hayatsever and Ece Toksabay)