Drug traffickers in central Da Nang city have gradually shifted their focus from opium and marijuana to methamphetamine and heroin over the past two years.

The statement was made by senior lieutenant colonel Nguyen Xuan Cuong, Deputy Head of Counter Narcotics Office (PC47) under the city's Public Security Department, at a conference on drug prevention on June 14.

Cuong said the number of traffickers caught with methamphetamine last year increased by seven times over the amount in 2011.

In 2012, the city's narcotics police force arrested a total of 128 drug offenders with 921.4 grammes of methamphetamine, 54 grammes of heroin and 133.6 grammes of marijuana extracts.

The city has a total of 1,500 addicts and drug users at rehabilitation centres.-VNA