Armed police officers were called to Laird Street in Birkenhead this afternoon and arrested a man who was "behaving erratically" and smashing windows in a flat.
Laird Street was closed both ways to traffic.
A statement by Merseyside Police said "Just before 3pm emergency services were called following reports from the public concerned about the safety of a man, believed to be in his 40s, acting erratically and damaging the windows of the property.
"As a precautionary measure officers placed an armed containment on the property and the building was evacuated.
"Officers spoke with the man who then left the property just after 4pm and was detained by the police.
"No one else was inside the property and no one was injured during the incident."
The man was arrested for affray and on suspicion of criminal damage.
Laird Street was closed both ways to traffic.
A statement by Merseyside Police said "Just before 3pm emergency services were called following reports from the public concerned about the safety of a man, believed to be in his 40s, acting erratically and damaging the windows of the property.
"As a precautionary measure officers placed an armed containment on the property and the building was evacuated.
"Officers spoke with the man who then left the property just after 4pm and was detained by the police.
"No one else was inside the property and no one was injured during the incident."
The man was arrested for affray and on suspicion of criminal damage.