Three checkpoints on the border between Ukraine and Poland remain blocked, while one is open. Hundreds of trucks are lined up in front of all checkpoints, says Andrii Demchenko, spokesperson for the State Border Guard Service of Ukraine. “The blocking continues. There are three directions: Yahodyn, Rava-Ruska, and Krakivets checkpoints. Shehyni was unblocked the other day and the intensity remains there,” says Demchenko. A queue is opposite the Shehyni checkpoint as drivers and carriers look for routes to cross the border. “As of this morning, 1,000 trucks were in front of Shehyni. And about 8…