On Saturday, 22,500 refugees from Ukraine arrived in Poland, according to the agency.
Meanwhile, a total of 8.3 million people have left Poland for Ukraine, including nearly 24,000 on Saturday, since the outbreak of the war over a year ago.
It is estimated that Poland is currently home to more than 2 million Ukrainians after many who had fled Russia's invasion moved on to other countries or decided to return to Ukraine.
Last March Poland passed a bill that offers wide-ranging support to Ukrainians escaping the Russian invasion of their country.
The measure grants them residence rights and ensures access to education, healthcare and social benefits.
Over 80 percent of Poles are in favour of accepting refugees from war-torn Ukraine, according to a recent survey.
Sunday is day 375 of the Russian invasion of Ukraine.
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Source: IAR