Jokes that turned nasty..

A baby and toddler suffer facial burns after acidic liquid land on their pram from a Melbourne multi-storey car park. A boy has been taken into custody and question by the police.

Police said, the baby boy aged 12 month, and girl aged two suffered superficial facial injuries when the sodium hydroxide landed on them as their mother pushed them along in their pram.

The mother was said to be walking along Bray street in South Yarra which is parallel to Chapel S.t when the incident happened.

The MFB (Metropolitan Fire Brigade) Melbourne, said that the substance may have been tile cleaners and appears to have been poured of squirted from above.

Police said two youth are suspected throwing them from the top of a multi-storey car park.

Agatha Rao, waitress, was at a nearby restaurant told the ABC that the mother ran in screaming for help.

Stonnington Detectives are investigating the case and said they are trying to find out whether the accident was deliberately or accidental

Ambulance treated both of the children at the scene before they were taken to the Royal

Children's Hospital.