Two others are held in connection with the bombing, Imam Samudra and his accomplice, Amrozi.
Three teenagers are being held in connection with the shooting of a man in Olivehurst, Calif.
Two people were tonight being held in connection with the incident.
Operation Weeting officers said the woman was being held in connection with conspiring to intercept communications.
One of them, Michael Sedlak, an American, has been held in connection with the first bomb.
Mr. Kadyrov said 19 people, including four women, were being held in connection with the violence.
Other high-profile names held in connection with the investigation include comedian Freddie Starr and DJ Dave Lee Travis.
The Frenchman is being held in connection with the loss of bitcoins worth £247 million last February, the BBC reports.
Pakistani intelligence sources say Tayib Rauf was held in connection with the 7 July bombings but released without charge.
The discussions were held in connection with the annual congress here of the International Society of Blood Transfusion.
Seven people are being held in connection with Saturday's attack and the failed car bombings in London early on Friday.
