FOUR people continue to be questioned by police today in connection with the July 7 bombings.

Yesterday detectives were given extra time to question those being held, among them the widow of London bombing ringleader Mohammed Sidique Khan and her brother.

Hasina Patel, 29, and her brother Arshad, Khalid Khaliq and Imran Motala were all held in a series of anti-terror raids on Wednesday.

Properties in West Yorkshire and the West Midlands were searched.

Yesterday a Scotland Yard spokesman said the warrants of further detention allowed the four to be held until Wednesday, May 16.

Unarmed police made the arrests after swooping on addresses across West Yorkshire and the West Midlands.

Two of the men, aged 30 and 34, were arrested in Batley and Leeds, while the third man, aged 22, was arrested in the Selly Oak area of Birmingham.

All four, held on suspicion of the commission, preparation, or instigation of acts of terrorism, were taken to the high security Paddington Green police station in London for questioning.

Properties in Dewsbury, Batley, Beeston in south Leeds, and Birmingham were meanwhile cordoned off for forensic investigation.

The raids were led by the Metropolitan Police counter terrorism unit, with support from West Midlands and West Yorkshire Police.

Suresh Grover, a community worker who knows Ms Patel and her family and chair of the National Civil Rights Movement, previously said: "I am absolutely shocked and outraged that Hasina and her family have been arrested in the way they have."

London was thrown into chaos two years ago when four suicide bombers exploded devices in three packed rush hour London Underground Tube trains and a crowded bus.

The perpetrators - ringleader Khan, Shehzad Tanweer, Jermaine Lindsay and Hasib Hussain - all died.

Last month, three men - Mohammed Shakil, 30, Sadeer Saleem, 26, and Waheed Ali, 23, from Beeston, Leeds - became the first people to appear in court charged with conspiring with the four.

Scotland Yard has always insisted the "painstaking" investigation into the bombings is far from over.

But there has also been criticism both of the police and the security services over their handling of the July 7 attacks.