ANKARA, Oct 14 (Reuters) - Turkey has expanded its exports of armed drones by negotiating sales deals with Morocco and Ethiopia after their successful use in international conflicts, according to four sources familiar with the agreements. Any drone shipments to Ethiopia risk stoking friction in already strained relations between Ankara and Cairo, which is at odds with Addis Ababa over a hydropower dam on the Blue Nile. read more Two Egyptian security sources said Cairo had asked the United States and some European nations to help it freeze any deal. A third Egyptian source said any agreement would have to be raised and clarified in talks between Cairo and Ankara as they try to repair ties read more . Turkey, Ethiopia and Morocco have not formally announced any armed drone deals but several sources familiar with the arrangements provided details to Reuters. One Turkish official said Ethiopia and Morocco had both requested purchases of Bayraktar TB2 drones in agreements that could also include spare-part guarantees and training. A diplomat who requested anonymity said separately that Morocco had received the first batch of armed drones it ordered in May. Ethiopia plans to acquire them but the status of that order is less clear, the envoy said. The sources did not say how many drones were involved in the deals or provide financial details. Ukraine and Turkey"s NATO partner Poland have also ordered armed drones, which military experts say are cheaper than market rivals made in Israel, China and the United States. Official data show Turkey"s defence and aviation exports rose sharply to Morocco and Ethiopia in the past two months but do not provide details of drone sales. Ethiopia"s military and the prime minister"s office did not respond to requests for comment on the matter. Morocco"s government was not immediately available to comment. Its military does not discuss procurements publicly. Turkey"s top defence procurement and development body did not immediately respond to a written request for comment. Drone-maker Bayraktar, whose TB2 model was designed by President Tayyip Erdogan"s son-in-law, also did not respond to a request for comment. SUCCESSFUL DEPLOYMENT The growing interest in armed drones is a boost for the Turkish government at it tries to increase exports to help ease its economic problems, and underlines the growing importance of armed drones in modern warfare. read more The Turkish military used drones last year in Syria as well as in Libya, where Ankara backed the Tripoli-based government against eastern forces supported by Russia, the United Arab Emirates and Egypt. read more In Nagorno-Karabakh, the drones helped Turkey"s ally Azerbaijan defeat Armenia-backed forces. Defence and aviation exports to Ethiopia rose to $51 million in the first three months of this year, from $203,000 in the same period last year, with a jump in August and September, according to the Turkish Exporters Assembly. Exports to Morocco were $78.6 million in the same period - with $62 million in September alone - compared to $402,000 last year Some media in Morocco have reported the arrival of armed drones from Turkey. A Facebook page that identifies itself as an unofficial Moroccan military forum reported last month that the first TB2 drones from an order of 13 had arrived from Turkey, and that the armed forces had sent officers to Turkey for pilot training. Overall Turkish defence and aviation exports totalled $2.1 billion in the first three quarters of this year, up 39% from $1.5 billion last year, according to the Turkish Exporters Assembly.