A Serbian worker for service firm Ferrostaal was kidnapped in Libya over the weekend.
According to Radio Free Europe Radio Liberty, Serbia’s Foreign Ministry confirmed that the worker was taken hostage on April 23 or April 24.
The Libya Herald said that the man who was abducted is Miroslav Tomic, a 36-year-old pipeline engineering with Germany-based Ferrostaal.
Tomic was reportedly kidnapped from the Messla oilfield located about 341 miles south-east of Benghazi.
The Serbian Foreign Ministry told the Libya Herald on Tuesday that there have been reports that Tomic has been freed but those reports have not been confirmed yet.
No group has claimed responsibility for the abduction.
Ferrostaal has not commented on the reports.
Libyan oil production has sunk to multi-year lows as the country grapples with attacks against oil assets launched by rival government forces and Islamic State groups.
At least nine guards were killed and more than 40 wounded in early February while defending the Es Sider port ISIS rocket attacks.
Last July, four Italian construction workers were kidnapped near an Eni operated industrial complex in Libya.
That incident came just one month after a Libyan manager for Eni’s Mellitah oil and gas joint venture was kidnapped by an unknown assailant.
Attacks launched by suspected members of Islamic State prompted Libya’s state owned oil company to declare a force majeure for 11 oil fields in March 2015 after the field’s were found to be non-operational.