From the UK Telegraph:

London bombs suspect arrested in Egypt
(Filed: 15/07/2005)

A key suspect in the London bombings has been arrested near Cairo.

Reports said Egyptian chemistry student Magdy Elnashar, 33, who was believed to have had a central role in making the bombs, had been detained near Cairo and was being questioned.

Elnashar, who studied for a PhD at Leeds University, is thought to have links to a Leeds flat being searched by anti-terrorist officers.

He was detained in a suburb of Cairo following a worldwide search involving the FBI, Interpol and other agencies.

ABC said authorities believed he had left Britain two weeks before the four explosions that killed 54 people on July 7.

A statement from Egypt's Interior Ministry said Elnasher had returned to Egypt for 45 days of holiday and had intended to return to Britain to complete his studies.

Elnasher denied any link to the attacks, it said.

Leeds University said Elnashar came to Leeds to study for a PhD in the school of biochemistry in October 2000.