A group of six Muslim men plotted a series of "murderous suicide bombings" on London's public transport system just days after the July 7 London bombings, a court has heard.

At the opening of a high-profile trial of the men, Woolwich Crown Court heard that they were engaged in an "extremist Muslim plot" to target the capital using bombs made partly of chapatti flour.

The alleged attacks would have occurred on July 21, 14 days after the "carnage" of the July 7 London bombings, Nigel Sweeney, QC, for the Crown, said.

Police found a bomb factory where the explosives were to be put together and timetable for doing so, he added.

"This case is concerned with an extremist Muslim plot, the ultimate objective of which was to carry out a number of murderous suicide bombings on the public transport system in London," Mr Sweeney told the court.

"The day eventually chosen was Thursday July 21 2005, just 14 days after the carnage of July 7."

When the bombs failed to explode, one suspect fled London disguised as a Muslim woman in a burka and another left the country for Italy, Mr Sweeney told the court.

The accused - Muktar Said Ibrahim, 28, from Stoke Newington, north London; Ramzi Mohammed, 25, from North Kensington, west London; Yassin Omar, 26, from New Southgate, north London; Hussain Osman, 28, of no fixed address; Manfo Kwaku Asiedu, 33, of no fixed address; and Adel Yahya, 24, of Tottenham, north London - have all denied the charges.

Mr Sweeney told the jury that Mr Omar's one-bedroom flat was the conspirators' bomb factory, "where the great majority, if not all, of the work required to make those bombs was carried out".

A total of 284 bottles of hydrogen peroxide had been purchased by the alleged conspirators between April and May 2005, he added, while "two rudimentary seven-day timetables" had also been found at the flat, which appeared to be a rota for three men - Mr Ibrahim, Mr Asiedu and Mr Omar - to oversee its concentration with various raw materials to convert it into explosives.

On the reverse of one of the timetables police found calculations for the process, the court heard.

The explosives were constructed using a mixture of liquid hydrogen peroxide, acetone - similar to nail varnish remover - acid and chapatti flour, he added.

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