The European Parliament has voted to approve two agreements allowing Frontex operations outside the EU: one between the EU and Serbia, and the other between the EU and Montenegro.
See: EU-Serbia status agreement on actions carried out by the European Border and Coast Guard Agency in Serbia and EU-Montenegro status agreement on actions carried out by the European Border and Coast Guard Agency in Montenegro (European Parliament, links)
Background: Border externalisation: Agreements on Frontex operations in Serbia and Montenegro heading for parliamentary approval (Statewatch News, 11 March 2020)