Detectives have arrested three Bangladeshi associates of a Chinese gang that has been embezzling a huge amount of money by targeting Bangladeshis through various online scams.

Through scams including gambling websites in multi-level online marketing schemes, the gang took several crores from people, DB officials said as quoted by The Daily Star.

The three arrested people were identified as Rakibul Islam Ratul, 24, Asaduzzaman Raju, 29, and Mamun Howlader, 27.

They were arrested from Dhaka's Airport area on Friday, Saifur Rahman Azad, additional deputy commissioner of DB police, told The Daily Star.

DB officials said the gang recruited Bangladeshi students studying in China to facilitate their fraudulent activities.

Officials said these students were then 'trained' in China to embezzle Bangladeshi nationals.

"The three students, after returning to Bangladesh from China, opened a gambling site in consultation with the Chinese fraudsters," Harun Or Rashid, additional commissioner of Dhaka Metropolitan Police, told The Daily Star.

Though the arrestees operated the gambling site, the masterminds -- Gaga, and Chig Chog -- still remain in China.

The gang reportedly scam people by offering them part-time or online jobs.

They asked the target to deposit a payment by promising double return.

"The initial payment was collected through MFS in Bangladesh. Then the money went to China through Cryptocurrency," said the DB chief.

They applied different techniques -- honeytrap, loan apps, online financing, and multilevel marketing -- to trap people, police said.