Another arrest has been made in the investigation into the London Bridge attack.
A 19-year-old man was held on suspicion of preparing terrorist acts following a raid at an address in Barking, east London, at 9.50pm on Sunday, Scotland Yard said.
Detectives from the Metropolitan Police's Counter Terrorism Command were searching the address and another in Barking where a 28-year-old man was arrested on Saturday.
A total of seven men are being held in custody under terror laws after the June 3 atrocity that left eight dead and dozens wounded.
The development came as new testimony emerged from a woman who was knifed in the throat in the attack.
Australian Candice Hedge was working at Elliot's Cafe in Borough Market when attackers Khuram Butt, Rachid Redouane and Youssef Zaghba launched their van and knife rampage.
The 34-year-old said: "They were behind me so I couldn't see, one was standing basically beside me as I was huddled down in the corner. I did see one of our customers get stabbed by one of the guys and the one who was standing beside me was shouting."
Ms Hedge said it was "one quick go and that was it. I was vomiting blood".
Describing her horror as blood gushed from the wound, she told Australian programme Sunday Night: "I was thinking, I don't want to die."
On Sunday police released images of the terrorists' blood-spattered fake suicide belts.
The phoney bombs were simply disposable water bottles wrapped in silver and black tape and attached to leather belts, although they were designed to create "maximum fear", police said.
Metropolitan Police Commander Dean Haydon praised the bravery of the police officers and members of public who tackled the three - despite the possibility they could have been killed in an explosion.
One week on from the atrocity, revellers returned to the Borough Market area on Saturday night in a show of defiance, although the market is expected to remain closed into this week.
On Sunday Southwark Cathedral, which had remained shut since it was reportedly stormed by armed police during the attack, reopened.
Detectives have made 21 arrests as part of the probe.
Twelve people arrested in the initial stages were released without charge.
A 27-year-old arrested under the Terrorism Act on Tuesday was also released without charge on Saturday.
A man arrested on suspicion of drugs and firearms offences in connection with the investigation was bailed until a date in late June.
The inquests for the victims will be opened on Tuesday and are expected to last two days.