Several people from Birmingham are being questioned on suspicion of terrorism-related offences after the terror attack in Westminster.
They were arrested after several raids across the city.
Leicester Cathedral have held a candlelit vigil for the victims of the Westminster terror attacks.
The Bishop of Leicester the Rt Reverend Martyn Snow said:
Three vehicles have been seized by police after an armed raid in Birmingham linked to the Westminster terror attack.
Two more 'significant arrests' have been made, including one in the West Midlands, as details of Westminster killers past emerge.
A peace vigil is to be held in Birmingham to promote unity, after the city's most prominent mosque condemned the Westminster terror attack.