A man has been arrested on suspicion of abducting a two-year-old girl from outside a Kowloon hospital last month, police said on Tuesday.

The man, 36, allegedly grabbed the girl and boarded a taxi outside Queen Elizabeth Hospital on December 17, police assistant district commander Man Tat-shing said.

The girl had strayed away from her mother who was paying a hospital bill at a cashier when the man allegedly approached her.

After being able to locate her daughter, the mother informed hospital staff and police. Police officers later found the girl,  alone and unharmed, on the staircase of a restaurant in Jordan.

Man said the suspect, arrested late on Monday, did not know the girl or her mother. He said investigators were trying establish a motive for the abduction.

He added that the man was still in custody and would be charged with child abduction.

This is the second arrest in the case. Earlier, a 56-year-old woman was arrested for allegedly arranging for someone to abduct the child.