The document, which was sent to companies operating in the park and was seen by Reuters, cited an immigration circular that came into effect on Nov. 18.
It said applications for new employment and visit visas had been suspended for nationals, who are outside the UAE, of the 13 countries, including Afghanistan, Libya and Yemen, until further notice.
It was not clear if there were any exceptions to the ban.
The UAE’s Federal Authority for Identity and Citizenship had no immediate comment when contacted by Reuters.
A source briefed on the matter told Reuters the UAE had temporarily stopped issuing new visas to Afghans, Pakistanis and citizens of several other countries over security concerns.
The source did not say what those concerns were but said the visa ban was expected to last for a short period.
Last week, Pakistan’s foreign ministry said the UAE had stopped processing new visas for its citizens and those of some other countries.
It said it was seeking information from the UAE on the reason for the suspension but that it thought it was related to the novel coronavirus pandemic.
The Pakistani ministry and the source said those holding valid visas were not affected by the new restrictions and could enter the UAE.