began installation. The line will enter service in its entirety, between and , in 2020 but will not stop at and , which will open at a later date. By February 2019 construction on the main line was 95 percent completed and platform screen doors were beginning to be installed, while the Supreme Council for Civil Personnel Selection was planning a competition to fill the first 28 Thessaloniki Metro employee positions. Despite the progress, in September 2019 Greece's new conservative cabinet announced a further 28-month delay to the project, pushing the opening date from November 2020 to April 2023 and citing costly archaeological works at as the reason. The new Minister of Infrastructure and Transport announced that the government had decided to scrap the previous plan to keep the archaeological discoveries in situ within the station at Venizelou, choosing instead to disassemble them and re-assemble them at a later stage, noting that excavation costs had exceeded €130 million ($ million), more than the cost of the new Acropolis Museum. Thessaloniki's new conservative mayor, Konstantinos Zervas, as well as Prime Minister Konstantinos Mitsotakis, supported this move. Mitsotakis also announced at the Thessaloniki International Fair that a new archaeological museum would be built specifically to house archaeological artefacts unearthed during the construction of the metro. The new head of Attiko Metro accused archaeologists of "looking to the past; we need to look forward". The decision to disassemble the archaeological finds, dubbed a "Byzantine Pompeii", was strongly criticised, and a citizens' group has taken the government to court over the issue for a second time, supported by former mayor Yiannis Boutaris among others. Part of the objection has to do with the fact that the government has not carried out any studies as to how it will return and re-assemble the artefacts once the station has been built; this course of action was adopted for the construction of Aghia Sofia station, where the archaeological discoveries were more significant than those at Venizelou, but the re-assembly of the artefacts on site is now impossible because Attiko Metro never constructed any space dedicated to the re-assembly of the artefacts it disassembled, despite having promised to do so. In April 2020, the International Association of Byzantine Studies (AIEB) wrote to Prime Minister Mitsotakis to protest the removal of the antiquities from their original location, saying that the discoveries constituted "a cultural and scientific jewel" and that