5 February 2021 9:26 GMT Updated 5 February 2021 9:32 GMT in London Ithaca Energy has restarted output at its FPF-1 production facility in the UK North Sea after it was shut in in mid-January after workers tested positive for Covid-19. Ithaca, owned by Israel's Delek Group, confirmed a phased restart began on 1 February following a deep clean of the unit and the implementation of new precautions, including on-board testing. “In response to crew members testing positive for coronavirus on the FPF-1 floating production facility last month we have reviewed our Covid-19 procedures, completed a deep clean of the FPF-1, implemented testing of those on board the installation, and increased cleaning schedules,” Ithaca said on Friday.