More than 1.5 million people have crossed from Ukraine into neighboring

Humanitarian corridors in the southeastern Ukrainian cities of Mariupol and Volnovakha will be opened again today, according to Russian state news agency TASS.

Some skepticism over the routes has grown after Ukrainian authorities paused evacuations of civilians Saturday, citing Russian violations of a ceasefire.

“In the morning, humanitarian corridors will again be opened both in Mariupol and Volnovakha,” Eduard Basurin, deputy head of the so-called People’s Militia of the Donetsk People’s Republic told reporters, TASS reported.

Civilians in the battered Ukrainian port city of Mariupol are trapped without power and water and unable to recover their dead, its mayor said Saturday, as he accused Russia of trying to “choke” the city by shutting off agreed evacuation routes.

Russia agreed to a ceasefire on Saturday to allow civilians to safely leave Mariupol and Volnovakha, where residents have endured days of heavy, indiscriminate shelling.

But evacuations were paused, with Ukrainian authorities accusing Russia of violating the agreement by resuming its attacks, leaving thousands of civilians trapped in what people on the ground describe as increasingly dire conditions.

Another attempt to open a humanitarian corridor for civilians in the city of Mariupol will begin at 12 p.m. local (5 a.m. ET), the Governor of the Donetsk region, Pavlo Kyrylenko, said Sunday on his official Twitter account.

A ceasefire will be in effect from 10 a.m. to 9 p.m. local time Sunday, Kyrylenko said.