Spanish police announced on Thursday the seizure of 20,000 military uniforms that they said were bound for Islamic State and Nusra Front militant organizations.

The uniforms were hidden in three containers, tagged as second hand clothes, police said in a statement.

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The containers were found in Valencia and Algeciras.

The confiscation follows the arrest in February of seven people with alleged links to the two Islamist organizations.

Police did not say which country the containers were bound for.

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