Earlier this week, the government also turned another wedding venue Koh Pich Convention & Exhibition Centre into a field hospital housing about 1,800 beds.
The government last Wednesday enforced a 14-day lockdown in Phnom Penh and Takhmau due to the rapid increase in COVID-19 cases.
Mao Ayuth was also a secretary of state at the Information Ministry.
There has been an explosion of COVID-19 cases in Cambodia, centered in Phnom Penh’s garment factories and public markets.
With the vaccination campaign still at an early stage, the Health Ministry reported 178 news cases on Wednesday, including 145 plus two deaths in Phnom Penh.
The Cambodian government lashed out at the United Nations' criticism that its approach to mitigating the spread of the novel coronavirus was breaching people’s right to privacy.
Two clusters have emerged in Phnom Penh: one at the popular Orussey Market and the other at Din Han Enterprise, a Taiwanese-owned factory.
The government has restricted travel between provinces and cities, banned large gatherings and imposed a curfew in the capital Phnom Penh for two weeks from April 1.
Around 50 workers from Din Han Enterprise, a Taiwanese-owned garment factory, tested positive for COVID-19 on Wednesday.
The current vaccination push is targeting priority groups, including government officials.
The Health Ministry on Tuesday said that there are currently 1,003 patients who are being treated at health facilities across the country.