The US has blacklisted four Pakistani nationals and nine companies for laundering money of drug traffickers for criminals worldwide.<br/><br/>The US Treasury Department in a statement said these companies were engaged in third-party money laundering by transferring funds to financial institutions on behalf of drug traffickers worldwide.<br/><br/>The companies were set up in Pakistan and the UAE.The Treasury Department said it remains committed to combating illicit money laundering networks around the world and today's action is the result of close coordination with our partners in the UAE.