An FBI probe was launched Friday to determine the source of the leak, however a senior official told The New York Times that tracking down the perpetrator could prove difficult because a large number of officials have the security clearances needed to access the information.
In Ukraine, the documents suggested a misalignment between US and Ukrainian military strategies, with intelligence reports appearing to show the US continues to spy on top military and political leaders in the region.
The Pope Francis, 86, presided at a solemn Easter day Mass after unseasonal cold forced him to skip an outdoor service on Friday - a precaution following his hospitalisation for bronchitis at the end of March.
* Pope Francis appeared to ask Russians to seek the truth about their country's invasion of Ukraine in his Easter message to the world on Sunday and appealed for dialogue between Israelis and Palestinians following recent violence.
On Sunday he asked God to "comfort the wounded and all those who have lost loved ones because of the war, and grant that prisoners may return safe and sound to their families. Open the hearts of the entire international community to strive to end this war and all conflict and bloodshed in our world."
Russia has already accused the West of using its civilian space infrastructure to support the operations of the Ukrainian troops, including for combat strikes, and detecting the locations of Vladimir Putin's army and its movements.
In his Easter message, Prime Minister Rishi Sunak said today: 'Easter Sunday gives us a chance to reflect on the considerable contribution Christian communities make to our national life - offering support and a sense of belonging to so many across the country.
LONDON, April 9 (Reuters) - A 50-year-old man and his 11-year-old daughter were killed after Russian forces struck a residential building in the southeastern Ukrainian city of Zaporizhzhia early on Sunday, authorities said.
Toler, whose investigative consortium has done several probes of Russian intelligence operations, said he believed he had traced the posting back to Thug Shaker Central on Discord, which was then reposting by users to a bigger group.
"On this day, Lord, we entrust to you the city of Jerusalem, the first witness of your resurrection. I express deep worry over the attacks of these last few days that threaten the hoped-for climate of trust and reciprocal respect, needed to resume the dialogue between Israelis and Palestinians, so that peace may reign in the Holy City and in the entire region," he said.
The archbishop said that 'those who oppress and subjugate others will face divine justice' and that while 'cruel and oppressive rulers' may look as though they are only becoming stronger, they will 'vanish'.
Princess Anne, Prince Edward and the Duchess of Edinburgh are all expected to attend will attend the service at St George's Chapel, while the Princess of Wales has also reportedly organised an Easter egg hunt for the royal children.
The Easter Liturgy and Online Geimetry middle school Grade Teacher lighting of the Paschal candle is held every year at Easter, and is used throughout the Paschal season and then throughout the year on special occasions, such as baptisms and funerals.
The documents - while up to several months old - offer detailed insights into which Russian intelligence agencies have been most compromised, and clues as to how the United States has gleaned so much secret Kremlin information.
Meanwhile, Pope Francis appeared to ask Russians to seek the truth about their country's invasion of Ukraine in his Easter message to the world on Sunday and appealed for dialogue between Israelis and Palestinians following recent violence.
While the breach underscored America's ability to infiltrate Moscow's upper echelons, it has also sparked fears that Russian intelligence may now have a clearer understanding of exactly what the US does and does not already understand, providing an opportunity to cut off sources of information.
Aric Toler, head of research and training at the Bellingcat investigative consortium, said Saturday that the photos were posted by the Thug Shaker Central on Discord, but DailyMail.com was unable to find the group on on the platform Saturday.
The leak comes amid speculation that a wave of classified document breaches could be being orchestrated by Russia, in what was described by a senior intelligence official as 'a nightmare for the Five Eyes' - a reference to the intelligence sharing agreement between the United States, Britain, Australia, New Zealand and Canada.
This weekend mark the first Easter without the late Queen after she died aged 96 on September 8 last year 2022. It is also the second anniversary of the death of her devoted husband Prince Philip on Sunday.
Allied nations, such as South Korea, have also reportedly been the subject of spying by the Pentagon, raising questions as to the diplomatic impact the leak could have at a time of deteriorating global ties.