A high-level security official said that "well-organized terrorists" were behind the blasts and that police intelligence reports warned of more bombings planned in places of worship and public buildings.
"I'm happy to meet with them," Mr. Fu said, referring to feelers he has received from high-level security officials.
Sheik Abdullah said that the tribe would insist on holding talks with high-level security officials if Yemen was found responsible for the attack.
With Mr. Cameron in France on Wednesday, the home secretary, Theresa May, called an emergency meeting of the Cobra committee, a group of cabinet ministers and high-level security officials that oversees the operations of police and security agencies at times of high security alerts.
When Mr Morsi sacked his intelligence chief and several other high-level security officials on August 8th, after militants had killed 16 Egyptian soldiers in Sinai, it was seen as an assertive step by a leader seeking to make his mark.
"Tempers flared during an August 12 higher policy council meeting when high-level security service officials openly questioned the government's continuation of indirect negotiations with Israel and its 'generosity' with Lebanon".
Since his arrival several months ago, he contended, he had captured a high-level Taliban security official and handed him over to American forces at Bagram Air Base.
According to a high-level Afghan security official who was briefed on the talks, the discussions about what, if any, role members of the Haqqani network might play in an Afghan government ended fruitlessly.
In Ankara on Friday, the day of the coup, the interior minister had been invited, along with other top officials, to a high-level security meeting in military headquarters that was supposed to take place after 5pm, a ploy that turned out to be intended as a pretext to detain him.
When he failed to return after a longer period, and the company could not find him, it notified intelligence officials because of Snowden's high-level security clearance, one of the sources said.
