A 59-year-old man has been arrested on suspicion of murder by detectives investigating the disappearance of Claudia Lawrence, North Yorkshire police said.
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The 53-year-old was killed shortly after leaving her home in Mosta, Prime Minister Joseph Muscat said.
Jordi Sanchez of the Catalan National Assembly and Jordi Cuixart of the Omnium Cultural group were jailed on Monday.
Storm Ophelia continues to bring strong winds to western parts.