Portugal will deploy a further 340 public security police (PSP) officers at national airports at the beginning of July to help streamline border control procedures.

Interior Minister Luís Neves announced the move on Friday.

"On 4 July, we will deploy another 340 people, PSP officers who are currently receiving specific training for work at the borders. Lisbon alone will get 140, 100 will go to Porto, and then others to Faro, Funchal and Ponta Delgada," the minister said, in comments reported by Portuguese television network SIC.

The measure comes in the wake of bottlenecks recently reported at border control in some Portuguese airports, with Lisbon particularly affected.

These incidents have been linked by the government to the rollout in Portugal of the European Union’s Entry/Exit System (EES), among other factors.