Russia and Ukraine again exchanged a series of major overnight drone strikes as the two sides maneuvered ahead of a possible resumption of ceasefire talks later this week.Renewed talks -- if they do happen -- would take place as both Kyiv and Moscow near new records for the scale and intensity of cross-border strikes,

Ukraine's drone attacks on Moscow over the weekend caused chaos at four major airports as passengers were forced to sleep on terminal floors or wait in long queues.

A fire broke out in Moscow Oblast overnight on July 20 as Ukraine reportedly launched a drone attack targeting the Russian capital, local Telegram channels reported.