There seems to be a number of sources (from both sides) now confirming what everyone long suspected: that it was just a matter of time before the NAF closed the Debaltsevo Cauldron. An LPR commander claims:

The militia has fully encircled Debaltsevo. Road to Artemovsk is under Novorossia control. It is impossible to travel on it, we are about to put up roadblocks. Ukrainian forces will attempt to break out, but they have relatively few forces left, they have problems with ammunition and food. The annihilation of the Debaltsevo pocket will occur in the near future.

Compare this report to an urgent plea from Rada Deputy Taras Pastukh, who is currently participating in the fighting at Debaltsevo:

“Greetings from the still-Ukrainian Debaltsevo. We just repelled an attack on our base camp. Earlier it could barely be reached by artillery, but today enemy infantry had arrived. The National Guard had left the city, thus leaving us open to attack. All blocking positions report constant shelling and tank attacks. We never received any reinforcement. It went to the CTO zone, but never went where it was needed.” “We are being abandoned here, while at the same time others are simply running away,” he added. He also asked the country’s leaders for support. “I ask for your help. Tell everyone you can about the critical situation here. Maybe someone got the idea I was excessively panicked, because the President had said that he had everything under control. Unfortunately, I was only wrong about the time, because I could not believe they would come at us with such force, while we continued to hope to abide by the Minsk Agreement and discuss whether a martial law is needed,” noted the deputy. In his words, “this is genuine betrayal of the country by the entire military command, including our so-called ‘president’.”

TASS is also reporting that Ukrainian troops in Debaltsevo are now completely cut off from reinforcements. Even The Los Angeles Times is relaying rebel claims that 8,000-10,000 Ukrainian troops are now trapped and can't escape without surrendering.

Stay tuned.