NEW YORK: Russian troops bared down on the Ukrainian capital of Kyiv on Friday and turned its streets into a battleground overnight. Ukrainian president Volodymyr Velenskyy announced in a video address early Saturday morning that Ukraine had “withstood and successfully repelled enemy attacks.

” The capital remains in Ukrainian hands for now. Meanwhile, the White House is asking Congress for $6.4 billion in aid for Ukraine and 970,000 Ukrainians have been displaced from their homes according to the United Nations.

Timothy Cardinal Dolan, Archbishop of New York, attended the *8:00 a.m. Mass on Sunday at Saint George Ukrainian* Catholic Church as a sign of solidarity and concern for the people of the Ukraine during this troubled time

President Vladimir Putin has ordered Russian nuclear deterrent forces on alert amid tensions with the West over his invasion of Ukraine.

Speaking at a meeting with his top officials, Putin asserted on Sunday that leading NATO powers had made “aggressive statements” along with the West imposing hard-hitting financial sanctions against Russia, including the president himself.

Putin ordered the Russian defense minister and the chief of the military’s General Staff to put the nuclear deterrent forces in a “special regime of combat duty.”

Street fighting broke out in Ukraine’s second-largest city and Russian troops squeezed strategic ports in the country’s south Sunday, advances that appeared to mark a new phase of Russia’s invasion following a wave of attacks on airfields and fuel facilities elsewhere in the country

The capital, Kyiv, was eerily quiet after huge explosions lit up the morning sky and authorities reported blasts at one of the airports. Only an occasional car appeared on a deserted main boulevard as a strict 39-hour curfew kept people off the streets. Terrified residents instead hunkered down in homes, underground garages and subway stations in anticipation of a full-scale Russian assault.

The past night was tough – more shelling, more bombing of residential areas and civilian infrastructure,” Ukrainian President Volodymyr Zelenskyy said. “There is not a single facility in the country that the occupiers wouldn’t consider as admissible targets.”

Following its gains to the east in the city of Kharkiv and multiple ports, Russia sent a delegation to Belarus for peace talks with Ukraine, according to the Kremlin. Zelenskyy suggested other locations, saying his country was unwilling to meet in Belarus because it served as a staging ground for the invasion.

Until Sunday, Russia’s troops had remained on the outskirts of Kharkiv, a city of 1.4 million about 20 kilometers (12.4 miles) south of the border with Russia, while other forces rolled past to press the offensive deeper into Ukraine

*Videos posted on Ukrainian media and social networks showed Russian vehicles moving across Kharkiv and Russian troops roaming the city in small groups. One showed Ukrainian troops firing at the Russians and damaged Russian light utility vehicles abandoned nearby.*

The images underscored the determined resistance Russian troops face while attempting to enter Ukraine’s bigger cities. Ukrainians have volunteered en masse to help defend the capital, Kyiv, and other cities, taking guns distributed by authorities and preparing firebombs to fight Russian forces.

Ukraine’s government also is releasing prisoners with military experience who want to fight for the country, a prosecutor’s office official, Andriy Sinyuk, told the Hromadske TV channel Sunday. He did not specify whether the move applied to prisoners convicted of all levels of crimes.

Russian President Vladimir Putin hasn’t disclosed his ultimate plans, but Western officials believe he is determined to overthrow Ukraine’s government and replace it with a regime of his own, redrawing the map of Europe and reviving Moscow’s Cold War-era influence.