U.S. President Donald Trump said on Monday that it would be “smart” for Venezuelan President Nicolas Maduro to leave power, reinforcing his administration’s pressure campaign on Caracas.

Speaking from Palm Beach, Florida, Trump indicated that the United States could either keep or sell oil seized off Venezuela’s coast in recent weeks, or use it to replenish U.S. strategic reserves. He did not provide a firm decision, stating, “Maybe we will sell it, maybe we will keep it.”

Trump has ramped up U.S. military presence in the region and authorized more than two dozen strikes on vessels allegedly involved in drug trafficking near Venezuela. The operations have reportedly resulted in at least 100 fatalities.

Asked whether the goal was to oust Maduro, Trump said: “Well, I think it probably would… That’s up to him what he wants to do. I think it’d be smart for him to do that. But again, we’re gonna find out.” He added a stark warning for Maduro if he continued to resist U.S. pressure: “If he plays tough, it’ll be the last time he’s ever able to play tough.”

Trump also criticized Colombian President Gustavo Petro, calling him “no friend to the United States” and accusing him of facilitating cocaine trafficking into the country.

In addition to strikes, the Trump administration has imposed a “blockade” on oil tankers under sanctions entering and leaving Venezuela. On Sunday, the U.S. Coast Guard pursued an oil tanker in international waters near Venezuela, marking the second such operation over the weekend and the third in less than two weeks.

Responding indirectly to Trump’s comments, Maduro said leaders should focus on their own countries’ affairs, without directly mentioning the U.S. president. “Each country should mind its own internal affairs,” he said, referring to a prior phone call between the two leaders last month.