Hundreds of people have made their way to the border’s barbed-wire fence, with many forcing their way through.
The Polish government has called a crisis meeting and deployed 12-thousand troops in response to the migrant influx.
Poland is also accusing the Belarusian government of pushing migrants out of their country.
Poland, Lithuania and Latvia all believe there has been a surge in migrant activity over the last several months, with many of the people coming from the Middle East and Asia.
The European Union is also accusing the Belarusian government and the nation’s President Alexander Luka-shenko of causing the migrant crisis in retaliation against recently imposed sanctions.
There are also grave fears for the migrants’ safety as they try to enter Poland during the region’s sub-zero winter.