Following the forced landing of a plane and the incarceration of a dissident journalist, European Union Foreign Ministers will begin discussing which sections of Belarus’ economy to sanction on Thursday, according to the EU’s top diplomat.

“The hijacking of the plane and the detention of the two passengers is completely unacceptable, and we will start discussing implementation of the sectorial and economic sanctions,” EU Foreign Policy Chief Josep Borrell told reporters before the informal meeting in Lisbon.

He said work on a new round of sanctions on Belarus individuals was at an advanced stage, but did not give more details.