Tajikistan said 35 of its citizens were killed in the latest border clashes with Kyrgyzstan, bringing the total death toll to at least 81.
On its Facebook page, the Tajik Foreign Ministry reported 35 dead including civilians, women and children.
Another 139 people were injured in the fighting on the southwestern border, he added.
The previous toll given by the ministry was 24 dead.
Meanwhile, the death toll on the Kyrgyz side has risen to 46, making it the worst outbreak between the two Central Asian countries in years.
Kyrgyzstan said nearly 136,000 residents had also been evacuated from villages near Tajikistan.
Russian President Vladimir Putin on Sunday called for “no further escalation” between Kyrgyzstan and Tajikistan.
In phone calls with the leaders of the Central Asian nations, Putin also urged them to “take steps to resolve the situation as soon as possible by exclusively peaceful, political and diplomatic means.”
The two countries of the former Soviet Union are now part of the Russia-led Collective Security Treaty Organization (CSTO), but they have seen a steady escalation in tensions.
On Friday, the two sides agreed to a ceasefire, but since then fighting has continued, with both sides accusing each other of violating the agreement.
After new clashes on Saturday, the night passed “quietly, without incident”, the Kyrgyz authorities said on Sunday morning.
“The country’s leaders are taking all measures to stabilize the situation, prevent attempts at escalation…in a peaceful manner,” they added.
On Sunday afternoon, the Kyrgyz authorities issued a statement saying that the situation at the border “remains calm, tending towards stabilization”.
United Nations Secretary-General Antonio Guterres called on the leaders of both sides “to engage in dialogue for a lasting ceasefire”, a spokesman said.
Border disputes have plagued former Soviet republics throughout their three decades of independence. About half of their 970 kilometer (600 mile) border has yet to be demarcated.
Unprecedented clashes between the two countries occurred in 2021, killing at least 50 people and raising fears of a wider conflict.
. number dead rises in the border clashes between Tajikistan Kyrgyzstan news about the conflicts