Amnesty International says Saudi Arabia is "well on track" to far exceed previous annual execution records.
Read: Another Pakistani drug mule executed in Saudi Arabia
Mansour bin Habeeb bin Mahdi Khalfan, a Saudi, was put to death Thursday in the kingdom's eastern region after having been convicted of "leading a gang" dealing in hashish, money laundering and forged documents, the interior ministry said.
According to an AFP tally, Khalfan was the 44th local or foreigner executed this year in Saudi Arabia, which Amnesty says has regularly been among the world's top five executioners.
London-based Amnesty says around half of this year's executions have been for drug-related offences.
Read: Saudi beheads Pakistani heroin smuggler
The interior ministry cites deterrence as a reason for the punishment, while warning of "the physical and social harm" caused by drugs.
Rape, murder, apostasy, armed robbery and drug trafficking are all punishable by death under Saudi Arabia's version of sharia Islamic law.
The Gulf state has carried out around 80 executions annually since 2011, with 87 last year by AFP's tally.
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