Acid attack on busy Hong Kong shopping street

Hong Kong police were Tuesday scouring CCTV footage for clues as to who tossed a bottle of acid from a building onto one of the city's busiest shopping streets, the third such attack in six months.

The attack in the Mongkok district of the city on Monday evening injured 24 people, including a four-year-old girl, who all suffered from burns to their limbs and faces. Police are still investigating the incident and do not rule out the possibility that the same person or people were behind the three attacks.

In December, 46 people were injured when two bottles of corrosive liquid were tossed down from a building onto the street. Another similar attack occurred near the same spot in May, injuring 30 pedestrians. No one has so far been arrested over the attacks.

The latest incident came just hours after a new surveillance system was installed in the district, one of the most densely-populated parts of the world. The system was brought in as a result of the previous attacks. The police are offering a reward of 900,000 Hong Kong dollars (S$169,650) for information leading to the arrest of those involved.