Two people have been arrested on suspicion of drugs offences.
At around 5.00pm this afternoon police in Cardiff attended an address on Crwys Road in the Cathays area of Cardiff.
They they arrested two men, aged 49 and 60, from the Splott area on suspicion of the production of Cannabis. Both men have been taken to Cardiff Bay police station.
The street was closed for a short period while investigations took place and the property was made secure.
Armed officers were also deployed as a precaution to ensure the safety of the public.
Armed officers have been deployed to an incident in the Cathays area of Cardiff. Officers attended the incident on Monthermer Road at around 8.30 am this morning. South Wales Police said an investigation into the matter is continuing.
Armed Officers were deployed "to ensure the safety of the public and officers in the area."