New Arrest In London Bombings

Egyptian Authorities Arrest Chemist In Cairo As Probe Widens

(CBS/AP) 
Authorities in Pakistan, meanwhile, were looking into a connection between one of the London suicide bombers and two al Qaeda-linked militant groups in Pakistan, including a man arrested for a 2002 attack on a church near the U.S. Embassy, two senior intelligence officials said.

The investigation is focusing on at least one trip that 22-year-old Shahzad Tanweer made to Pakistan in the past year, said the officials, who work at two separate intelligence agencies and are involved in the investigation. They spoke to The Associated Press on condition of anonymity because of the secretive nature of their jobs.

One of the officials said that while in Pakistan, Tanweer is believed to have visited a radical religious school run by the banned Sunni Muslim militant group Lashkar-e-Tayyaba.

The sprawling school in Muridke, 20 miles north of Lahore, has a reputation for hostility. Journalists who have traveled to the school in the past have been threatened and prevented from entering.

Lashkar-e-Tayyaba was banned by Pakistan for alleged links to a 2001 attack on India's Parliament.

ABC News, citing unidentified officials, reported that the attacks were connected to an al Qaeda plot planned two years ago in Lahore. Names on a computer that authorities seized last year from Muhammad Naeem Noor Khan, an alleged Pakistani computer expert for al Qaeda, matched a suspected cell of young Britons of Pakistani origin, most of whom lived near Luton, where the alleged suicide bombers met on their way to London shortly before last week's blasts, according to the report.

Authorities have now discovered ties between Mohammed Sidique Khan — one of the July 7 bombers — and members of that cell who were arrested last year, ABC said.

In another international development in the inquiry, Jamaica's government said it was investigating a Jamaican-born Briton as one of the bombers. Reports identified him as Lindsey Germaine.

On Thursday, police released closed-circuit TV video showing one of the four suicide bombers — 18-year-old Hasib Hussain — wearing a backpack as he passed through the Luton train station on his way to London.

Hussain allegedly set off the bomb that killed 14 people aboard the bus. That blast occurred nearly an hour after three London Underground trains blew up, and investigators don't yet know what Hussain did during that hour or when he boarded the bus.

Trying to map out Hussain's movements, police appealed for information from anyone who may have seen him in or around King's Cross station, where the four parted ways.

Police officially identified two of the suicide bombers Thursday — Hussain and Tanweer, whom they say attacked a subway train between Liverpool Street and Aldgate stations.

News reports have identified the fourth bomber as 30-year-old Mohammed Sidique Khan.

Hussain's family issued a statement Friday, saying they were devastated by the attack and had no idea he could have been involved.

"We had no knowledge of his activities," his family said, adding that had they known, they would have stopped him. "We urge anyone with information about these events, or leading up to them, to cooperate fully with the authorities."

It was Hussain's mother who gave investigators a key break in the case when she called them the night of the bombings to report him missing. Her description of Hussain's missing clothes led police to conclude that he was the likely attacker in the bus bombing that killed 14 people.