British police on Friday said that officers had shot at a woman at a london address, arrested six others as part of counter-terrorism operations and averted an active terror plot. An operation across london and Kent, south-east England, was not linked with the arrest of a 27-year-old man with knives near the Houses of Parliament on Thursday, the Scotland Yard said on Friday. Metropolitan Police deputy assistant commissioner Neil Basu told reporters outside New Scotland Yard in london today that highly trained firearms officers carried out a “specialist entry into an address” in north london that they had under observation as part of a current counter terrorism investigation.