10 Nigerians plead not guilty to a charge of assaulting policemen during a raid at an apartment in PJ.
Following another death in custody, the civil society group says the government must look into the conditions at detention centres and how detainees are treated.
There are daily cases of people with Ghanaian passports, who turn out to be Nigerians, being arrested by Malaysian police, says Ghanaian newspaper.
PKR's Miri MP Dr Michael Teo says police must set up a squad that is similar to one in China that has been quite successful in nabbing online scammers.
Expert says in some countries, visa holders, including those on long-term visas, need to report to authorities every 90 days.
Police say the four suspects were arrested to assist investigations into the 'Nigerian Romance Scam' that resulted in losses of about RM400,000.
Such banners are contrary to how Malaysia is depicted as a harmonious, multiracial and friendly country, say Nigerian students.
Inspector-General of Police Khalid Abu Bakar urges woman to lodge report so police can bust the cyber criminals.