Trump officials are expected to link the use of pain reliever Tylenol in pregnant women to autism, according to US media reports.

At an Oval Office event on Monday, the US president will reportedly advise pregnant women in the US to only take Tylenol, known as paracetamol elsewhere, to relieve high fevers.

At the Charlie Kirk memorial service on Sunday, Trump said he had an "amazing" announcement coming on autism, saying it was "out of control" but they might now have a reason why.

Some studies have shown a link between pregnant women taking Tylenol and autism, but these findings are inconsistent and do not prove the drug causes autism.

Tylenol is a popular brand of pain relief medication sold in the United States, Canada and some other countries. Its active ingredient is acetaminophen, which is called paracetamol outside North America.

Tylenol maker Kenvue has defended the use of the drug in pregnant women.

In a statement to the BBC, it said: "We believe independent, sound science clearly shows that taking acetaminophen does not cause autism. We strongly disagree with any suggestion otherwise and are deeply concerned with the health risk this poses for expecting mothers."

Acetaminophen is the safest pain reliever option for pregnant women, it added, and without it, women face a dangerous choice between suffering through conditions like fever or use riskier alternatives.

The BBC has contacted the Department of Health and Human Services (HHS) for comment.

In April, the leader of HHS, Robert F Kennedy Jr, pledged "a massive testing and research effort" to determine the cause of autism in five months.

But experts have cautioned that finding the causes of autism - a complex syndrome that has been researched for decades - would not be simple.

The widely held view of researchers is that there is no single cause of autism, which is thought to be the result of a complex mix of genetic and environmental factors.

• Tylenol-maker shares hit after report of autism link

The American College of Obstetrics and Gynecology said doctors across the country have consistently identified Tylenol as one of the only safe pain relievers for pregnant women.

"[S]tudies that have been conducted in the past, show no clear evidence that proves a direct relationship between the prudent use of acetaminophen during any trimester and fetal developmental issues," the group has said.

The drug is recommended by other major medical groups as well as other governments around the world.

In August, a review of research led by the dean of Harvard University's Chan School of Public Health found that children may be more likely to develop autism and other neurodevelopmental disorders when exposed to Tylenol during pregnancy.

The researchers argued some steps should be taken to limit use of the drug, but said the pain reliever was still important for treating maternal fever and pain, which can also have negative effects for children.

But another study, published in 2024, found no relationship between exposure to Tylenol and autism.

"There is no robust evidence or convincing studies to suggest there is any causal relationship," said Monique Botha, a professor in social and developmental psychology at Durham University.

Dr Botha added that pain relief for pregnant women was "woefully lacking", with Tylenol being one of the only safe options for the population.

Autism diagnoses have increased sharply since 2000, and by 2020 the rate among 8-year-olds reached 2.77%, according to the US Centers for Disease Control and Prevention (CDC).

Scientists attribute at least part of the rise to increased awareness of autism and an expanding definition of the disorder. Researchers have also been investigating environmental factors.

In the past, Kennedy has offered debunked theories about the rising rates of autism, blaming vaccines despite a lack of evidence.

Burkina Faso, Mali and Niger have announced they will immediately withdraw from the International Criminal Court (ICC), labelling it an "instrument of neo-colonialist repression".

The three military-led countries issued a joint statement, saying they would not recognise the authority of the United Nations' top court, based in The Hague.

"The ICC has proven itself incapable of handling and prosecuting proven war crimes, crimes against humanity, crimes of genocide, and crimes of aggression," the three leaders said.

The court has not yet responded to the decision by the three countries, all of which with close ties to Russia whose leader Vladimir Putin has been subject to an ICC arrest warrant.

The three states said they wanted to set up "indigenous mechanisms for the consolidation of peace and justice".

They accused the ICC of targeting less privileged countries, echoing criticism from Rwanda's President Paul Kagame who has previously accused the ICC of holding an anti-African bias.

The ICC was set up in 2002 to legally pursue cases of genocide, crimes against humanity, war crimes and aggression.

Out of 33 cases launched since its inception, all but one involved an African country.

A country's withdrawal from the ICC officially takes effect one year after the UN is notified.

Military junta forces are in control of Burkina Faso, Mali, and Niger, following coups in the Sahel countries between 2020 and 2023. They make up the only three members of the Confederation of Sahel States.

Their armies have faced accusations of crimes against civilians, as violence has escalated in the region against jihadist groups linked to al-Qaeda and the Islamic State.

In another coordinated move earlier this year, all three countries simulatenously withdrew from the regional bloc, the Economic Community of West African States (Ecowas).

They had rejected Ecowas' demands for them to restore democratic rule.

Russia has strengthened its ties with the three Sahel countries over recent years, which have all become increasingly isolated from the West, notably the former regional colonial power France.

In 2023, the ICC issued an arrest warrant for Russia's President Vladimir Putin over alleged war crimes in Ukraine.