Afghanistan, April 1 -- A Russian military transport plane crashed in Crimea, killing all 29 people on board, in one of Moscow's deadliest aviation losses in recent months.

Russia's Defence Ministry said Wednesday that the An-26 aircraft went down during what it described as a routine flight over Crimea. According to the ministry, the dead included 23 passengers and six crew members, and search teams later located the wreckage.

Russian authorities said the cause of the crash remains under investigation, though early assessments cited by state media pointed to a possible technical malfunction. There was no immediate official indication of hostile fire or sabotage, despite the sensitivity of the area.

The An-26 is a Soviet-designed militar...