Four arrested west of Paris in counter-terrorism swoop

PARIS (Reuters) - Four people have been arrested in the west-of-Paris suburb of Trappes as part of a counter-terrorism operation, a judicial source said on Wednesday.

The swoop follows the opening of preliminary investigation in February. Investigators did not think there was an imminent risk of an attack, the source added.

(Reporting by Emmanuel Jarry; writing by John Irish; editing by Brian Love)