Considered the finest baroque church in Vienna, as well as one of its most significant buildings, the almost 300-year-old church has recently become the target of unknown vandals.
On May 3, attackers sprayed slogans on the sandstone structure and threw paint on the angel statues flanking the entrance to the church, causing €13,000 worth of damage.
This time, balloons filled with grey paint were hurled at the newly cleaned angel statues. Some also hit the building's façade, while others fell to the ground.
The cost of repairing this weekend's damage has not yet been calculated.
As with the prior incident, there were no eyewitnesses and the perpetrators have given no indication as to the motive for their attacks.
"Shortly before midnight, passers-by called to inform us that they had seen paint on the façade of the church," reported police spokesman Thomas Keiblinger.
Police are investigating whether there is any connection between the two incidents.