The officials, who have firsthand knowledge of the operation, said the use of the aircraft was part of an Egyptian-led operation against the militiamen that would at a later stage involve Libyan ground troops recently trained by Egyptian forces.
The operation, they said, had been requested by the internationally recognized Libyan administration based in the eastern city of Tobruk.
The officials said the operation also involves the use of an Egyptian navy vessel as a command center off the Mediterranean shore of Tobruk.
Renegade Libyan general, Khalifa Hiftar, is not leading the operation, with Egypt dealing directly with a newly appointed Libyan chief of staff, who has visited Egypt several times in recent weeks.
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The operation was expected to last three to six months, said the officials, who spoke to The Associated Press on condition of anonymity because they were not authorized to speak to the media.
He says the planes were "rented" by the Libyan administration from Egypt.
Al-Jorushi is also a member of the national security committee in the Tobruk-based parliament.
Libya has been mired in turmoil since the ouster of longtime ruler Moammar Gadhafi's regime in 2011, with militias operating with impunity and the government unable to rein them in.
In recent months, the militias in Tripoli and Benghazi swept through the two coastal cities, defeating anti-Islamist forces, setting up their own government and reviving an old parliament.
It had made no secret of its willingness to offer military support to the Tobruk-based government, saying it would train and arm its forces.