Police also confirmed a location in south-east London was being searched,
BBC News reports.
A 22-year-old man arrested Sunday in Highbury, north London in connection with
Lee Rigby's murder has been bailed out by police, Scotland Yard said.
Four of those arrested have been bailed out. Two have been released without charges and four remain in custody over the incident in which
Lee Rigby was hacked to death last Wednesday.
Two suspects, Michael Adebolajo, 28, and Michael Adebowale, 22, remain in custody and are said to be in stable condition after being shot by police at the scene of the murder,
BBC News reports.
Questions are still being raised about what British authorities knew about the suspects before Rigby's murder.
On Sunday, the
Foreign Office confirmed it had given consular assistance to Mr. Adebolajo, one of the suspects, after he was arrested in Kenya in 2010.
Kenyan government spokesman
Muthui Kariuki told
BBC News they feared Mr. Adebolajo was training to fight for
Al-Shabaab and was handed over to "British security officers."
