The FBI is searching the home of the brother of one of the San Bernardino shooters in Corona, California.
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Federal authorities were unable to comment on the nature of the search, of the home of Syed Farook's brother, because the affidavit that supports it was sealed by the court, the FBI said in a statement.
No arrests have been made.
Farook and his wife, Tashfeen Malik, killed 14 people at the Inland Regional Center last December. They were killed by police in a shootout after the massacre.
This is a developing story. Please check back for updates.