Facebook and YouTube have removed from their platforms a video by Brazilian President Jair Bolsonaro in which the far-right leader made a false claim that COVID-19 vaccines were linked with developing AIDS.

Both Facebook and Alphabet Inc’s YouTube said the video, which was recorded on Thursday, violated their policies.

“Our policies don’t allow claims that COVID-19 vaccines kill or seriously harm people,” a Facebook spokesperson said in a statement on Monday.

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YouTube confirmed that it had taken the same step later in the day.

“We removed a video from Jair Bolsonaro’s channel for violating our medical disinformation policy regarding COVID-19 for alleging that vaccines don’t reduce the risk of contracting the disease and that they cause other infectious diseases,” YouTube said in a statement.

According to the Joint United Nations Programme on HIV and AIDS (UNAIDS), COVID-19 vaccines approved by health regulators are safe for most people, including those living with HIV, the virus that causes acquired immunodeficiency syndrome, known as AIDS.