A MAN was almost bashed to death with a hammer and another thrown off a bridge with his pet dog during a spate of violent robberies in Sydney's west.
Four masked men, armed with an axe, hammer, gun and knife, forced their way into an Auburn home early Tuesday.
Once inside, the intruders took to a 24-year-old man's head with the hammer before running off with cash and property.
He was taken to Westmead Hospital where he remained in a serious condition on Tuesday night.
At Parramatta, police arrested two teenagers accused of robbing and assaulting a 30-year-old man on the Smith St bridge before throwing him and his dog into the river below.
The victims managed to swim to safety.
In the same suburb, a taxi driver was recovering on Tuesday after a knife was held to his throat near the Parramatta train station.
The 36-year-old managed to grab the knife out of the passenger's hand before he was injured.
In the same 24-hour period a young female was threatened by three men armed with a knife and baseball bat as she closed a pizza shop at Northmead late Monday.
The woman was forced to lock herself in the cool room as two of the men jumped the counter and stole cash, cheques and paperwork from the cash register.
She was not injured.