A woman arrested on suspicion of aiding Khalid Masood in preparation for the Westminster terror attack has been released without charge, the Metropolitan Police said.
The 32-year-old woman was arrested in Manchester last week, two days after Masood's deadly attack which claimed the life of four victims, including police constable Keith Palmer outside the Palace of Westminster on March 22.
She was detained on suspicion of preparation of terrorist acts under the Police and Criminal Evidence Act on March 24, and released on Thursday afternoon.
A 30-year-old man arrested on March 26 in Birmingham remains in custody after an application for extended detention under the Terrorism Act 2000 on March 27.
Ten other people who were previously arrested in connection with the investigation have been released without further action.
The inquest into the deaths of victims who died during the attack was opened and adjourned at the Royal Courts of Justice on Wednesday March 29, and a provisional date for the pre-inquest review has been set for May 19.
A provisional date for the pre-inquest review into the death of the attacker, who was shot dead by a police marksman at the scene, was also set for May 19 at the Royal Courts of Justice.
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