The men,in their 20s,were hit by falling steel at a worksite on the Gold Coast on Wednesday morning.
The father of a nine-month-old baby girl,whose body was found on a Surfers Paradise beach,has been charged with murder.
It's understood post-mortem results show the girl drowned and may have been placed in the water at Tweed Heads.
The nine-month-old girl found dead on a Surfers Paradise beach died in New South Wales,with police now making arrangements to extradite the girl's father from Queensland.
Police are waiting for the results of toxicology tests as part of their investigation into the death of a 9-month-old girl.
Her homeless father and mother were located about five kilometres away in Broadbeach and have been arrested on suspicion of committing an indictable offence.
The parents of a nine-month-old girl found lifeless on the beach at Surfers Paradise were homeless and raising their family on the streets.
Police said the infant,believed to be about nine months old,was believed to have been in the water before she was found unresponsive on the shore.
Police have established a crime scene after a woman suffered multiple stab wounds at the Wyndham Hotel in Surfers Paradise.
Police have been asked to fast track a review of the decision to fine Sean McComb and ban him from the Broadbeach and Surfers Paradise party precincts.
Police were called to SinCity Nightclub in Surfers Paradise after a disturbance on the dance floor.