Polish PM is trying to reassert control over both the country’s borders and his increasingly unruly governing alliance.

Poland will introduce temporary controls along borders with Germany and Lithuania on July 7, Prime Minister Donald Tusk said on Tuesday, echoing several other European Union countries in reimposing frontier checks to stem illegal migration.

Poland will introduce temporary border checks with Germany starting Monday, following growing tensions over irregular migration across the shared frontier. Prime Minister Donald Tusk said the decision was a response to Germany’s unilateral tightening of border controls last month,