A record 781 migrants arrived in Britain in a single day, according to Home Office records. The figure marks a sharp increase compared to previous days. Two boats landed undetected on British shores within the past two days, raising concerns about border security. Officials have not yet commented on the surge in arrivals. The Home Office is reviewing its monitoring systems to address the unexpected rise. The situation highlights ongoing challenges in managing cross-channel migration. Authorities are preparing for potential further arrivals in the coming days.