Ukraine’s Transcarpathia region borders Hungary and is home to a Hungarian minority. Over the past decade, Hungary has maintained that Kyiv is limiting the cultural and linguistic rights of the Hungarian population,

Ukraine and Hungary said on Friday they were expelling two diplomats each after each side accused the other of engaging in espionage.

Ukraine says it has expelled two Hungarian diplomats hours after the country’s main security agency said that it had arrested two people on suspicion of spying for Hungary by gathering intelligence on Ukraine’s military in the west of the country.