11.   According to the Observer, London police earlier this year started an inquiry into reports that triad gangs have infiltrated London schools.

12.   Apart from the influx of overseas triad gangs, soaring unemployment in Macau has also produced a negative impact on stability, the director said.

13.   Authorities did not release the name of the triad gang.

14.   But the triad gangs are also notorious for drug-trafficking, loan-sharking, protection rackets and prostitution.

15.   The violence has been blamed on rivalry between triad gangs over profits from casinos, illegal loans, prostitution, smuggling and drug-trafficking.

16.   Triad gangs have a history of involvement in buying up new housing.

17.   This resurgence in violent crime in the Portuguese enclave off the coast of southern China, is mainly attributable to triad organised gangs, police say.

18.   Three people were shot dead in Macau city centre Sunday, Lusa news agency said, quoting police sources as saying rival triad gangs were responsible for the incident.

19.   Violence has been blamed on rivalry between triad gangs over profits from casinos, illegal loans, prostitution, smuggling and drug-trafficking.

20.   Macau has for centuries been a base for Chinese triad gangs, bandits and pirates, loan sharks and sex trade racketeers.