Iraqi pilots who have joined Islamic State in Syria are training members of the group to fly in three captured fighter jets, a group monitoring the war said.
It was the first time the militant group had taken to the air, it said.
Oman accepted the first of its second order of Lockheed Martin F-16 Fighting Falcons in a recent ceremony April 3 at Lockheed Martin's Fort Worth facility.
The fighter aircraft will ferry to Oman later this year.
The Pentagon has notified Congress of a possible sale of weapons and other equipment that would be part of a larger, multibillion-dollar deal for 30 more F-16s that is still under discussion by Lockheed Martin Corp and the UAE.
UK defence contractor BAE Systems, which is part of a consortium that manufactures the Eurofighter Typhoon, is ready to meet any order Bahrain might make for a squadron of state-of-the-art fighter jets, said a top official.
The UAE has quit talks to buy Eurofighter Typhoon aircraft in a deal worth $9.8 billion, said BAE Systems, a UK-based a defence and aerospace company, adding that it has not yet reached a final agreement with Saudi Arabia over a jet deal.
US President Barack Obama has decided to halt the delivery of F-16 fighter jets to Egypt for an undetermined period due to the "current situation" on the ground there, the Pentagon said on Wednesday.
"Given the curr
The United States has delivered four F-16 fighter jets to Egypt, Egypt's military and a US military delegation said on Sunday, highlighting military links between the two countries despite Egypt's political upheaval.
Negotiations between France and the United Arab Emirates over the potential sale of 60 Rafale fighter jets to the Gulf country are ongoing and have a chance of succeeding, a French diplomatic source said on Wednesday.
The on-off n
Boeing expects to double revenue from its defence and security business in the Middle East to about $4 billion over the next two years as recent turmoil in the region drives up demand for arms, said Jeff Johnson, president of Boeing Middle East.
Iran will hold a large-scale military drill involving all its air defence systems next month, an Iranian commander was quoted as saying on Saturday, one of a number of military simulations it has carried out this year.
The air defence d