Prime Minister Benjamin Netanyahu has been summoned to give evidence in a separate investigation into possible ties between his aides and Qatar. Two suspects in the investigation, dubbed 'Qatar-gate' in Israel, have been arrested. Netanyahu, who is already on trial for corruption charges, denies the accusations and calls them 'fake news' and a politically motivated campaign against him. The investigation focuses on allegations that his aides orchestrated a campaign to improve Qatar's image abroad. Netanyahu has named a new chief to take over Israel's domestic intelligence agency after a standoff with the current head who has been presiding over the Qatar investigation.