Sign up for the View from Westminster email for expert analysis straight to your inboxGet our free View from Westminster emailThe Home Office has confirmed it will start detaining asylum-seekers within weeks for the first planned flights to Rwanda – after reports of a surprise move to round up people for deportation from Monday sparked anger from human rights groups.Rishi Sunak insisted this week that flights carrying asylum-seekers to Rwanda would take off in July, as the Rwanda Bill passed through parliament and into law.Despite still facing a host of difficulties in delivering on his flagship policy, Mr Sunak will be keen to show progress on illegal migration before calling a general election as pressure mountson his leadership.On Sunday, The Guardian published a report claiming the Home Office was set to launch a surprise two-week operation on Monday to detain refugees turning up for routine meetings at immigration service offices for deportation.The article claimed they would be immediately transferred to detention centres, which have already been prepared for the operation, before flights taking them to Rwanda. The passed legislation means deported asylum seekers’ applications will be dealt with by the east African country.The Home Office would neither confirm nor deny the paper’s claims, but said that, following the passage of its legislation, the “government is entering the final phase of operationalising this landmark policy to tackle illegal migration and stop the boats”. “At some stage inevitably this will include detaining people in preparation for the first flight, which is set to take off to Rwanda in 10-12 weeks. It would be inappropriate to comment further on operational activity,” the spokesperson said.Human rights advocates were quick to condemn the reported plan, warning such a move would further traumatise people fleeing torture and persecution.“Make no mistake, this latest attack on refugees by this government will further traumatise people who have fled from torture chambers seeking safety and a chance to rebuild their lives in the UK,” said Sonya Sceats, chief executive of charity Freedom from Torture.“We know from our clinical services that even survivors of torture who are completely safe from harm tend to live in a semi-permanent state of hypervigilance to threats, because of their history of being rounded up, detained, and abused in authoritarian states. Around 500 people crossed the Channel on small boats over the course of Friday and Saturday, the latest Home Office data suggests More