The US State Department on Thursday called on both Kosovo and Serbia to take immediate steps to de-escalate tensions, including the unconditional release of three Kosovo police officers detained in Serbia. State Department spokesperson Matthew Miller stated, "We believe that Kosovo and Serbia need to take immediate steps to de-escalate tensions." The arrest of the three police officers last night is the latest incident in a series of developments that have heightened tensions between Kosovo and Serbia, raising concerns about the potential for renewed violence between the two nations, which previously engaged in war.