Police is examining suspicious material found in a north London appartment recently visited by one of four men suspected of planting bombs. Investigators have seized a car in connection with the probe, police said.
Explosives experts were trying to identify the material found at the flat recently visited by Muktar Said-Ibrahim before removing it from the building, a police spokesman said.
Police on Monday released the names of Said, 27, and Yasin Hassan Omar, 24, as two suspects in the failed July 21 attacks on three Tube trains and a bus.
Meanwhile, a police spokeswoman said a car had been impounded nearby the north London appartment, the AP reports.