Officers were standing at the gates of Ysgol Bro Myrddin secondary school in Carmarthen on Wednesday afternoon after armed cops swooped, placing students into lockdown

Armed cops swooped on a school yesterday, locking down buildings and arresting a teenager on suspicion of making threats to kill.

The youth remains in custody today following the police operation which saw armed officers descend on a secondary school after reports a threat was made to a pupil.

Officers were standing at the gates of Ysgol Bro Myrddin school in Carmarthen on Wednesday afternoon after it was placed into a full lockdown, with all pupils kept inside their classrooms.

Pedestrians and vehicles were stopped from entering or leaving the site while police dogs were seen inside the school gates. A police drone was

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