Bloody Friday is the name given to the bombings by the Provisional Irish Republican Army (IRA) in Belfast, Northern Ireland on 21 July 1972, during the Troubles. At least twenty bombs exploded in the space of eighty minutes, most within a half hour period. Most of them were car bombs and most targeted infrastructure, especially the transport network. Nine people were killed: five civilians, two British soldiers, a Royal Ulster Constabulary (RUC) reservist, and an Ulster Defence Association (UDA) member, while 130 were injured. The IRA said it sent telephoned warnings at least thirty minutes before each explosion and said that the security forces wilfully ignored some of the warnings for its own ends. The security forces said that was not the case and said they were overstretched by the she