Israel's High Lander, backed by Emirati group, has developed a platform to safely manage UAV-based fleets within airspaces

Heron 1 drone taken to be repaired; cause of accident, the third in four months, does not appear to be same issue that caused November crash

Technicians swap out flight control component in all Heron 1 aircraft, after fleet grounded following crash in southern Israel last month

Report cites documents by Ukrainian experts who studied downed Iranian UAVs and concluded 75% of components are US-made, despite vigorous sanctions regime

Heron 1 has seen several such issues, most recently in September when one fell in the sea near maritime border with Lebanon; fleet taken out of service pending investigation

Air Force chief Tomer Bar orders model in question taken out of service pending investigation, two months after fleet grounded following crash near maritime border with Lebanon

Kyiv revokes accreditation of Iranian ambassador, orders staff reduction at the mission after country supplies attack drones to Moscow used for 'the murder of peaceful citizens'

Military says crash due to malfunction, without elaborating; aircraft retrieved by navy forces

American official tells CNN that Russian officials recently visited Iran for instruction as part of alleged deal to buy combat UAVs for Ukraine war

Two delegations recently received a showcase of Iranian attack-capable UAVs, as Moscow looks to bolster its arsenal for the war, White House says