Last Updated 12:27 p.m. ET
Six men have appeared in a London court on terrorism charges - three of them charged with plotting suicide bomb attacks in Britain.
The men were arrested in the central England city of Birmingham last week as part of what was called a "major operation" by counterterrorism police. They were charged late yesterday.
Four are accused of planning a terrorist act. Three of them are accused of planning a bombing campaign, making explosives and stating an intention to become suicide bombers.
Two are also accused of traveling to Pakistan for terrorism training.
All six appeared at West London Magistrates Court and were remanded in custody until October.
The police said Irfan Nasser, 30, Irfan Khalid, 26, Ashik Ali, 26, and Rahin Ahmed, 25, were charged with plotting terrorist acts.
They were involved in planning between Dec. 25, 2010 and Sept. 19 of this year to prepare or help others prepare to commit acts of terrorism, the department said.
Nasser and Ali are alleged to have planned a bombing campaign; stated an intention to be a suicide bomber; collected money for terrorism; made or helped others make a bomb; and recruited others for terrorism, police said.
Nasser and Khalid are also accused of traveling to Pakistan for terrorism training including bomb-making, weapons and poison-making, as well as making a martyrdom film, police said.
Ahmed is accused of helping others travel to Pakistan for terrorism training, collecting money for terrorism and investing and managing terrorist funds, police said.
Ashik Ali's brother Bahader Ali, 28, and Mohammed Rizwan, 32, are both charged with failing to disclose information about acts of terrorism, police said. Bahader Ali is also charged with terrorist fundraising.
A seventh Birmingham man, aged 20, who was arrested Thursday, is still being questioned, officers said.