The man was arrested in the capital on suspicion of assisting in the preparation of an act of terrorism
Police have made the arrest in Cardiff
An 18-year-old man from Cardiff has been arrested on suspicion of terrorism offences today.
The teenager, from the Grangetown area, has been arrested under the Section 5 of the Terrorism Act 2006 for assisting in the preparation of an act of terrorism. It is understood he has been taken to Cardiff Bay Police station.
A spokesman for South Wales Police said: "On Wednesday 2nd July, officers from North West Counter Terrorism Unit (NWCTU) assisted by Wales Extremism and Counter Terrorism Unit (WECTU) arrested an 18-year-old man from the Grangetown area of Cardiff. This arrest is part of an ongoing investigation.
"He has been arrested under the Section 5, Terrorism Act 2006 for assisting in the preparation of an act of terrorism."
The spokesman said it was too early to rule out links with the three Cardiff Jihadists who appeared in an apparent recruitment video in Syria.
Grangetown area of Cardiff where the teen is from
The Welsh Extremism and Counter Terrorism Unit (WECTU) is a collaboration of the four Welsh Police Forces.