Flávio Bolsonaro said Monday that a Brazilian Supreme Court justice ordered him to surrender his passports and barred him from leaving the country, a day after he lost the presidential runoff to Luiz Inácio Lula da Silva^1,2.

In an Instagram video he called the order “a clear attempt to intimidate me”^1,2. He is under investigation for alleged corruption and money laundering tied to financing of a film about his father, former President Jair Bolsonaro; he denies wrongdoing^1,2.

He said the measure followed a comment by his brother, U.S.-based Eduardo Bolsonaro, that Flávio would have to leave Brazil if he lost, which he denied saying^1,2.

Bolsonaro received 48.2 percent to Lula’s 51.8 percent and has refused to concede, citing a two-hour extension of voting that both campaigns had requested^1,2. He said he would organize opposition to Lula’s government^1,2. The justice’s written order was not quoted in these reports.