(LONDON) -- Assistant Commissioner Mark Rowley of the Metropolitan Police Service in London said on Tuesday that there have been five times as many terrorism-related arrests made in the U.K. in 2014 than at this point last year.
In an appeal to the public to "help identify aspiring terrorists" who may be traveling abroad, returning, or "showing signs of becoming radicalised," Rowley referenced the death of American journalist James Foley -- the video of which was posted on the Internet earlier this month -- noting the apparent British nationality of Foley's killer.
The MPS is working to identify individuals who may be susceptible to radicalization and also hopes to have extremist material removed from the Internet when found.
In addition to the terror arrests, high-priority operations -- particularly those involving potential attack plans -- have "increased greatly," while port stops and cash seizures have jumped by about 50 percent, Rowley said.
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