Two Nigerians were arrested in Hyderabad for involvement in a credit card fraud, while a Ugandan and a South African were arrested for selling drugs, police said on Thursday.
All four, who included two woman students, were residing in Yapral in Ranga Reddy district on the outskirts of Hyderabad.
According to MV Rao, additional deputy commissioner of police, the two drug peddlers were arrested on Wednesday night near Tarnaka when they were trying to sell cocaine. Nine grams of the drug was seized from them.
Police have sent a special team to Bangalore to nab Stephen Kiya Tira Illula, a Kenyan who supplied the drugs.
Patrick, who had come to India in 2005 to study, was earlier arrested thrice on the same charges. Rosita, the South African girl studying law at Osmania University, was assisting him in selling drugs.
In another case, police arrested Nigerian nationals Samuel Kings Hedion, 40, and his fiancee Liatu Baraya Yelmi, 28, for cheating businessmen through fake credit cards.
Samuel used to secure credit card numbers and other information online and prepare fake credit cards. He was assisted by Liatu, who is pursuing a degree in mass communications at New Delhi.