Twitchy will monitor and update as news breaks.

More from Guardian news editor Dan Sabbagh, who suggests the incident is not terror-related:

Similar report from Reuters:

The Associated Press reports the pilot is still out of contact.

The latest word: There have reportedly been two men arrested for “suspicion of endangerment of an aircraft.”

Essex Police confirm:

More from the Essex Police:

Police say no suspicious items have been recovered.

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