May 8 (Reuters) - Russian air defence units have intercepted more than ‌50 drones heading for Moscow ‌over a period of about 15 hours, according ​to Mayor Sergei Sobyanin.

The running total of drones downed between about 11 a.m. (0800 GMT) on Thursday and 2 ‌a.m. on ⁠Friday exceeded 50, Sobyanin said in a long series of ⁠dispatches on Telegram announcing the interception of drones throughout Thursday.

Emergency crews were ​examining debris ​on the ​ground, he said.

Russia's ‌Defence Ministry, posting separately on Telegram, said 95 Ukrainian drones had been intercepted over a four-hour period ending at midnight in various regions of ‌central and southern Russia.

Russia's ​Defence Ministry said it ​would observe ​a three-day ceasefire starting ‌at midnight on the ​night of ​May 7-May 8 until May 10 in connection with commemorations of ​the Soviet ‌victory over Nazi Germany in World ​War Two.

(Reporting by Reuters; Editing ​by Stephen Coates)