CNN posted on 4 May 2018 a report titled "Chinese Lasers Injure US Military Pilots in Africa, Pentagon Says" by Ryan Browne.
The article reported that the US has formally protested the use of military grade laser beams by China against American pilots flying in and out of its military base in Djibouti. China also has a military base in Djibouti.
The Diplomat posted on 10 May 2018 an updated account titled "Why Is China Attacking US Aircraft?" by Ben Lowsen.