Latest Developments in Ukraine: Sept. 20

For full coverage of the crisis in Ukraine, visit Flashpoint Ukraine.

The latest developments in Russia’s war on Ukraine. All times EDT.

5:28 a.m.: Millions of windows in Ukraine are estimated to have been broken by artillery blasts and other explosions since Russia invaded at the end of February, according to The New York Times. As fall and winter approach, the shattered glass is creating yet another problem for Ukrainians: How to patch up their homes and other buildings to keep out the cold.

3:40 a.m.:

2:30 a.m.: Officials in two self-declared separatist regions in eastern Ukraine are calling on Russia to annex the territories, as Ukrainian forces continue to extend their recent gains, The Washington Post reported.

The actions by authorities in the Luhansk and Donetsk people’s republics are a sign of panic that Moscow’s war in Ukraine is failing, the Post said, as Russia may be at risk of losing territory it had previously controlled in the eastern Donbas region.

1:15 a.m.:

12:30 a.m.: Russia has highly likely lost at least four combat jets in Ukraine within the last 10 days, taking its attrition to about 55 since the beginning of its invasion, the British military said, Reuters reported.

There is a realistic possibility that the uptick in losses was partially a result of the Russian Air Force accepting greater risk in a move to provide close air support to Russian ground forces under pressure from Ukrainian advances, the Defence Ministry said in its daily intelligence on Twitter.

Russian pilots’ situational awareness is often poor, it said. “There is a realistic possibility that some aircraft have strayed over enemy territory and into denser air defense zones as the front lines have moved rapidly.”

12:00 a.m.: Ukrainian forensic experts have so far exhumed 146 bodies, mostly civilians, at a mass burial site near the town of Izium in eastern Ukraine and some bear signs of a violent death, the regional governor said, according to Reuters.

President Volodymyr Zelenskiy has said some 450 bodies are believed to have been buried at the site in a forest on the outskirts of Izium, which was recently recaptured by Ukrainian forces during a counter-offensive in the Kharkiv region.

Oleh Synehubov, governor of Kharkiv region, said the exhumed bodies included two children.

“Some of the dead have signs of a violent death. There are bodies with tied hands and traces of torture. The deceased were also found to have explosive, shrapnel and stab wounds,” Synehubov wrote on the Telegram messaging app.

The forensic experts, dressed in white protective suits and wearing rubber gloves, have been working methodically for days to exhume and identify the bodies, whose makeshift graves were marked by flimsy wooden crosses.

Kremlin spokesman Dmitry Peskov on Monday rejected Ukraine’s allegations as a “lie.”

Residents have previously said some of the graves in the forest were of people who died in a Russian airstrike.