Father of killed Sydney children visits memorial

The father of three of the four children killed on a Sydney sidewalk visited a makeshift memorial at the site of the accident on Monday.

An alleged drunk driver has been charged with 20 offenses including manslaughter after a SUV struck seven children, killing four and seriously injuring a fifth.

The children were walking to buy ice cream when they were struck Saturday evening, police said.

Three of the children killed were siblings and their brother was taken to a hospital in serious condition.

The fourth child killed was the daughter of their father's cousin.

The father, Danny Abdallah, told reporters on Sunday he was heartbroken.

His children Antony, 13, Angelina, 12 and Sienna, 9, were killed. Their 10-year-old brother was in serious but stable condition.

Two other girls aged 10 and 13 suffered minor injuries, authorities said.

The driver, Samuel Davidson, was arrested at the scene and remains in custody.

The 20 charges against him were read in a Sydney court on Sunday.

He did not appear in court and was refused bail until his next court appearance on 2 April.

He has not entered any pleas. Manslaughter carries a maximum sentence of 25 years in prison.

Davidson allegedly recorded a blood alcohol concentration of 0.15% - triple the legal limit in Australia.