London police raid houses over riots

London: Police in London raided houses to round up more rioting suspects Thursday as Britain's big cities remained largely quiet after four days of rioting and looting that drew thousands of police officers onto the streets.

Prime Minister David Cameron issued a stern warning that order would be restored by whatever means necessary.

Deputy Assistant Commissioner Stephen Kavanagh said the raids to round up suspects began overnight, and more than 100 warrants would be executed. Police have already arrested almost 900 people in London since trouble began on Saturday, and 371 have been charged.

Hugh Orde, head of the Association of Chief Police Officers, said there would be "hundreds more people in custody" by the end of the day.