The ban is related to the hosting of the Asian Games in the second half of September, the official who requested anonymity explained in a telephone conversation.
"The main goal of the ban is to ensure peace and public order in the country in connection with the strengthened regime introduced by law enforcement agencies from August 17," the source added.
An AFP correspondent walked past a number of liquor stores in the white marble-clad capital Ashgabat and found them all to be closed.
On Thursday the government announced the unusual step of closing land borders ahead of the games, while a ban on smoking during the event was already in place.
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Despite Berdymukhamedov officially encouraging belt- tightening as the country reels from an economic crisis brought on by low gas prices, the government has spent heavily on infrastructure connected to the games.
According to the two groups female journalist Soltan Achilova, who works for the US-funded RFE/RL agency, has faced verbal and physical intimidation in recent months from unknown men while one of her colleagues was jailed on bogus narcotics charges in 2015.
Both Berdymukhamedov and his erratic predecessor Saparmurat Niyazov are honoured by golden monuments in a country whose isolation and leadership cults have regularly drawn comparisons with North Korea.