Two gerbils died overnight - antifreeze?

[Gerbilsgone]

Our two gerbils both died. I have just found a bottle of antifreeze someone has brought in from the car and a little had leaked on the floor. Does anyone know whether these fumes could have killed them?

that's so sad, could be fumes but i think it they drank some, were they out loose at the time for exercise ?

Antifreeze kills cats so I'm sure it will kill a gerbil.
Poor things

Seems unlikely in a normal sized room