Russia says the United Kingdom will face "consequences for which it will have to answer", after it emerged Ukraine used drones made by two British companies. Moscow's embassy in London blamed the UK for the 'escalation of the Ukraine crisis' after the drones were used on the territory for the first time. Key points and original sources are listed below.

• Russia says the United Kingdom will face "consequences for which it will have to answer", after it emerged Ukraine used drones made by two British companies.S1

• Moscow's embassy in London blamed the UK for the 'escalation of the Ukraine crisis' after the drones were used on the territory for the first time.S2