A $2 billion Bitcoin transfer seized by the US government amid a slide in cryptocurrency prices has investors worried about a potential sell-off just days after former US President Donald Trump vowed to make the country a “Bitcoin superpower.”

Data from blockchain analytics firm Arkham Intelligence showed that a government-linked wallet labeled “US Government: Silk Road Justice Department” transferred 29,800 BTC to an unmarked address with no prior transaction history. The address then moved 19,800 BTC and 10,000 BTC to two other different addresses.

While the purpose of the larger transfers remains unclear, analysts suspect that a smaller portion of $670 million may have been deposited with an institutional custodian, preceding the potential sale.

Bitcoin has lost about 3% of its value in the past 24 hours after briefly topping $70,000.

Before the transactions, the US government held $12 billion worth of confiscated BTC. The timing of these transfers is notable, as they came shortly after Trump promised to create a “strategic national reserve of bitcoin” if he returned to the White House.