This is the best summary I could come up with:

Belarus’s western neighbours have increased security since Minsk granted shelter to fighters from Russia’s Wagner mercenary group.

The Lithuanian government said the crossings at Tverecius and Sumskas will be closed, and traffic will be diverted to Medininkai, the largest of its six checkpoints.

Poland has also sharply restricted access from Belarus, and on Tuesday, Latvia ordered reinforcements to its border.

Latvian PM Krisjanis Karin said Belarus needed to know his country was serious about securing its borders for the good of its own people, and the rest of Europe.

Poland announced last week it was sending 10,000 extra troops to its border with Belarus following an alleged incursion by Belarusian military helicopters.

Concerns have been rising among the neighbours of Belarus - a close ally of Russia - since June, when a mutiny by Wagner challenged President Vladimir Putin’s authority.

I’m a bot and I’m open source!