BRUSSELS/WARSAW—Belarus carriers will be banned from flying over European Union territory or having access to its airports from Friday, the bloc said, as the country’s exiled opposition leader called for more joint Western sanctions. The EU decision is part of planned punitive measures against Belarus in response to Minsk scrambling a warplane to force the landing on May 23 of a Ryanair flight carrying an opposition journalist, who was then arrested. The move is due to take effect at midnight Central European Time, and requires EU member states “to deny permission to land in, take off from, or overfly their territories to any aircraft operated by Belarusian air carriers,” EU governments said in a statement. The ban also includes marketing carriers, which sell seats on planes operated by another airline as part of a code-share agreement. On Wednesday, the European Union Aviation Safety Agency (EASA) issued a safety directive saying …