The government's inquiry into grooming gangs "must look specifically at London as part of its local investigations", according to a group of MPs. In a letter seen by the BBC, eight Conservative MPs and three London Assembly members are demanding "urgent action" from Home Secretary Shabana Mahmood and Mayor of London Sir Sadiq Khan. The MPs include the shadow home secretary, Chris Philp, and the former leader of the Conservative Party, Sir Iain Duncan Smith. The letter follows a BBC News investigation last month, which exposed how vulnerable girls as young as 14 were being lured into forced sex by gangs in the capital. "Survivors told the BBC they had been raped by several men as payment for unpaid drug debts by the gangs that controlled them, while others said they had been groomed for sex," the letter says. "We are horrified by these reports.…