IDF refuses to say whether Skylark reconnaissance UAV was attacked or suffered malfunction

Head of IRGC aerospace force says army deliberately avoided targeting jet that accompanied drone, claims 2 warnings were given before UAV was destroyed

FAA bars American-registered aircraft from flying over airspace, citing 'potential for miscalculation or misidentification'; several top global companies follow suite

The US president is said to have urged Tehran to come to the table, warning of impending US military action; Iranian officials say they conveyed the matter to Khamenei

US official says military was making preparations to strike radars, missile batteries in response to drone's destruction, when approval was abruptly withdrawn

T-Heron said to reach altitude of 24,000 feet and can carry several payloads at a time