"We demand from the Russian Federation to cease hostilities immediately and to comply strictly with the cease-fire," the letter reads.
For the last two days, the document notes, Russian occupation forces have carried out massive attacks along the demarcation line, using Grad rocket systems, 152 mm and 122 mm artillery, 82 mm and 120 mm mortars, tanks, all of which are prohibited by the Minsk agreements, as well as small arms.
More than 400,000 civilians have no access to water, electricity and heat, the Foreign Ministry stresses.
As previously reported, the Ukrainian Foreign Ministry appealed to international partners and called on the Russian Federation to cease hostilities.
The fighting in the vicinity of Avdiivka has been underway since late Saturday, Jan. 28. Ukrainian soldiers bravely hold their lines, according to the military sources.
Three days into fighting, Ukrainian soldiers have managed to take enemy positions and improved their tactical set-up in the area. Unfortunately, casualties were reported among the military.
On Jan. 30, enemy strikes left the government-controlled town of Avdiivka without electricity, water and heat.
In the evening of Jan. 30, a state of emergency was declared in Avdiivka.