Southwest China's Guizhou province punished 4,660 officials for disciplinary violations in 2013, about 12 percent more than the previous year, the provincial discipline inspection commission said on Monday.

The discipline watchdog investigated 4,200 cases, a year-on-year increase of 10 percent, a commission spokesman said. Meanwhile, 296 officials, 151 percent more than the previous year, were delivered to justice authorities for further investigation.

In six rounds of inspections of the "eight-point" rules, 416 officials were punished for violations.

The province is going to tighten its anti-corruption efforts and further enforce the "eight-point" rules in 2014, the commission spokesman added.

Under the "eight-point" rules, put forward by the Communist Party of China Central Committee in December 2012, government officials must clean up undesirable work practices such as formalism, bureaucracy, hedonism and extravagance.