The incident at Port Sorell has now been resolved and a 41-year-old man has been safely taken into police custody.
The man had barricaded himself in his residence in Blackwood Crt at 10.15am today. No-one was injured when the incident was resolved at 9.50pm.
Several police units will remain in the area for some hours concluding investigations.
Nearby residents who had been evacuated from the area as a precaution will be permitted back into their homes in the next couple of hours.
Police would like to thank the Port Sorell community for their patience and understanding throughout a long day.