A SUM of $60 that a contracted cement worker claimed was owed to him ended up being a $20,000 bill that his former boss and landlord of a Mount Sophia creative arts complex will now have to foot.

The worker went on a 15-minute rampage on Tuesday morning in a one-storey building in the complex, in an apparent revenge attack for not being paid $60 in wages the day before.

He used a hammer to shatter the glass panels of the newly-renovated building, as 15 staff members of Union, an architecture and interior design collective, watched in shock.

He was later disarmed and pinned to the ground by two staff members before being taken away by police for questioning.

No one was hurt in the attack but it left a messy trail of broken glass shards around the office perimeter.

The incident comes just weeks after the 80,000 sq ft complex reopened in the old premises of the Trinity Theological College, to house tenants in the artistic and creative fields.

Union which moved into the old church sanctuary building on June 1 is currently the complex's only tenant as the other buildings are still being renovated.

Read the full story in Wednesday's edition of The Straits Times.