Britain lowers terror threat level following second arrest

British officials lowered the country’s terror threat level Sunday from critical to severe after the arrest of a second suspect in connection to Friday’s subway attack that injured 30 people. Home Secretary Amber Rudd said Britain still faced a substantial threat and urged everyone to “be vigilant but not alarmed.” The bomb was placed on a train at the Parsons Green underground station in southwest London during the morning rush hour but it did not completely detonate. Islamic State claimed responsibility for the attack, but British officials said there is no proof yet it was involved. Police arrested an 18-year-old suspect, believed to be an Iraqi orphan, on Saturday. Shortly before midnight Saturday, authorities picked up a second suspect, a 21-year-old man reportedly from Syria, in Hounslow in west London. Police on Saturday searched a home in Sunbury-on-Thames in southwest London belonging to Ronald and Penelope Jones, a couple who have fostered more than 200 children, including refugees from Middle Eastern conflicts. Ian Harvey, the leader of the local Spelthorne Borough Council, said he believed both suspects had lived with the Joneses.