Swedish public radio reports that an investigation launched by Sweden's Migration Agency in spring suggests that most of the wrongful documents were issued by the man in 2015.
According to the agency, his actions included changing a colleague's decisions to reject visa applications and approving fake certificates that should have been immediately dismissed as fake.
“Those people who used the false documents have in several cases sought asylum in Sweden and the asylum investigations show that it is all part of professional human smuggling,” states the report by the Migration Agency as quoted by Swedish radio.
The man denies the allegations which were labelled “serious” by a Migration Agency official, who added it is difficult to locate the people who received the visa documents.
“This is extremely serious. All situations were officials violate the rules intentionally and grant permits on false grounds are extremely serious,” Magnus Rodin, the Migration Agency's acting regional manager in Stockholm, told radio news programme Ekot.
“It is very hard for us today to say where these people are,” he added.
The man is employed by the Migration Agency, but was on a leave of absence in 2015 to work for the Swedish Foreign Ministry in one of its embassies.
The agency's internal watchdog recommends in its report that the man be fired and reported to a prosecutor. However, the agency's disciplinary board is awaiting the results of a more in-depth probe.
“It is completely absurd. They do not seem impartial. These are clear exaggerations and clutching at straws. I see no cause for disciplinary action,” his lawyer Jan Södergren told Ekot.