Firefighters contained a Sunday morning blaze at a vacant property on Dundas Street in London, with no injuries reported.

Crews were called to 745 Dundas Street at approximately 6:40 a.m. and managed to confine the fire to the building’s main floor before extinguishing it.

The cause remains undetermined. Dundas Street was temporarily closed between Elizabeth and English streets but has since reopened.

The property was already under an ongoing fire code investigation and had received multiple fire code violations, the London Fire Department said.