Fresh arrests have been made in the Manchester bombing probe after police carried out a controlled explosion during a raid on an address in the Cheetham Hill area of the city.
Two men aged 20 and 22 were held on suspicion of terror offences after officers used an explosive device to gain entry to the property, Greater Manchester Police (GMP) said.
The operation in the early hours of Saturday morning brings the number of suspects being held in custody to 11.
The development came as a vast security operation gets under way to protect hundreds of Spring Bank Holiday events across Britain this weekend.
More than 1,000 armed police are on standby as major spectacles, including the FA Cup Final at Wembley and the Premiership Rugby Final at Twickenham, are expected to draw tens of thousands of people into public spaces on Saturday.
Despite the country being placed on critical alert, police have urged people to go out and enjoy themselves.
Britain's senior counter-terror officer said "immense" progress had been made in the probe into the associates of suicide bomber Salman Abedi and a "large part" of his suspected network had been dismantled.