Police in Beijing launched a crackdown on drugs, gambling and prostitution Monday to clean up the city and advocate a healthy lifestyle.

"During the drive, we will crack down hard on organized crime behind all those social evils," said He Angang, a spokesman for the Beijing Municipal Public Security Bureau.

Local police have detained 111 suspects and sealed off 33 entertainment venues in connection with prostitution rings and activities since April 11 when a special campaign against prostitution started.

Police have decided to expand the campaign to crimes related to drugs and gambling with the approaching of the International Day against Drug Abuse and Illicit Trafficking that falls on June 26 and the FIFA World Cup in South Africa that opens on June 11, He said.

"The campaign of the 'three crackdowns' is to eradicate all social evils that go against the city's endeavors to build a global metropolis, and advocate a healthy, civilized and high-minded lifestyle," he said.