Russia announced yet another limited cease-fire and the establishment of safe corridors to allow civilians to flee some besieged Ukrainian cities Monday, Associated Press reported.

But the evacuation routes led mostly to Russia and its ally Belarus, drawing withering criticism from Ukraine and others.

Ukrainian officials accused Moscow of resorting to “medieval siege” tactics in some places, and in one encircled city, Mariupol, there was no sign yet of an evacuation.

Russian forces continued to pummel some Ukrainian cities with rockets even after the new announcement of corridors and fierce fighting continued in some areas, indicating there would be no wider cessation of hostilities, according to the Associated Press.

Efforts to set up safe passages for civilians to leave besieged areas over the weekend fell apart. But the Russian Defense Ministry announced a new push Monday, saying civilians would be allowed to leave the capital of Kyiv, the southern port city of Mariupol, and the cities of Kharkiv and Sumy. 

The two sides also planned to meet for talks again Monday, even though hopes were dim that they would yield any breakthrough. Their foreign ministers are also scheduled to meet in Turkey on Thursday, according to that country’s top diplomat.

In Mariupol, where an estimated 200,000 people hoping to flee were becoming increasingly desperate, Red Cross officials waited to hear when a safe humanitarian corridor would be established. The city is short on water, food and power, and mobile phone networks are down. Shops have been looted as residents search for essential goods, Associated Press reported.

Police moved through the city advising people to remain in shelters until they heard official messages broadcast over loudspeakers to evacuate. Russia and Ukraine traded blame after a planned evacuation mostly failed over the weekend there.