"The fighting has intensified to pre-agreement, pre-stand down levels and in some cases beyond," Breedlove told reporters in Brussels, referring to the largely ineffective ceasefire agreed in Minsk.
Ukrainian officials said Thursday that 41 soldiers and civilians were killed in 24 hours after conceding that government forces were forced to abandon Donetsk airport, the symbolic prize of a nine-month war with the separatists.
"The Russian-backed forces have renewed capabilities," Breedlove said. "In some places they moved the line of contact to the west."
But he could not confirm figures given by Ukraine's pro-western president Petro Poroshenko who said Wednesday there were now 9,000 Russian troops in the east of the former Soviet republic.
Breedlove added that NATO was "unable to confirm the presence of additional troops in Ukraine" at this stage.
"There have been two instances where we've had Russian troops across the border" in Ukraine, Breedlove said.
"We see the sames types of equipment in eastern Ukraine now."
Poroshenko stressed Wednesday there was no military solution to the brutal nine-month conflict that has killed more than 4,800 people and brought Ukraine's economy to its knees.
But he insisted that the key to peace was held by Russia a country that has firmly denied supporting the insurgents despite NATO satellite imagery purporting to show its forces' presence in Ukraine.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
