41.   They then boarded a passenger train to San Antonio, paying cash for their tickets, which alerted police, who thought they might be drug couriers.

42.   When confronted by police looking for drug couriers, they appeared nervous.

43.   With authorities eyeing Colombians more closely than ever, international mafias are increasingly using citizens of other nations as drug couriers, anti-narcotics experts said Friday.

44.   Authorities have arrested dozens of African nationals for acting as drug couriers or for trafficking in drugs in recent years.

45.   Singaporean drug couriers are increasingly being arrested overseas, tarnishing the image of the city state which has tough drug laws at home, a report said Friday.

46.   The drugs courier, who apparently had second thoughts before passing through customs, abandoned the heroin, leaving the suitcase turning on the conveyor belt.