More than 1,500 pounds of methamphetamine were seized from clandestine laboratories in Mexico, authorities announced on Monday, days after President Trump threatened possible military action to curb cartels in the country.

In separate operations, authorities found the secret labs along with more than 700 kilograms (1,543 pounds) of meth, as well as various chemical precursors, in the states of Durango, Sinaloa and Michoacán, the Mexican navy said in a news release.

During a land patrol in the town of Carricitos, Durango, a hidden laboratory was found with 1,150 liters and 695 kilograms of chemical precursors and material used for the production of synthetic drugs.

“The laboratory had extensive operating areas, materials and accessories for the production of synthetic drugs, which were completely disabled in order to prevent their reuse,” the navy said.

The second operation took place in Sinaloa, which is home to the notorious cartel of the same name. In the town of Los Cedros, authorities uncovered a lab where about 750 kilograms of finished meth were seized, as well as 1,150 liters and 695 kilograms of chemical precursors.

Finally, in the violence-wracked western state of Michoacán, in the town of La Escondida, another lab was discovered. Authorities seized 9,700 liters and 500 kilograms of chemical precursors, as well as laboratory equipment and tools.

The navy said it destroyed the labs, and released video and photos of the operation on social media.

“The total destruction of the laboratories represents a significant blow to the logistical structures of organized crime and prevents these illicit substances from reaching society,” the navy said in a statement.

The seizures were announced as the U.S. continues its campaign against drug trafficking, which has included more than 20 strikes against alleged drug-ferrying boats in the Caribbean and eastern Pacific. More than 100 people have been killed in the strikes.

Earlier this month, the U.S. attacked Venezuela in an operation that led to the arrest of President Nicolás Maduro. Mr. Trump has also threatened possible action in Mexico to curb drug cartels.

In an interview with Fox News last week, Mr. Trump said, “We’ve knocked out 97% of the drugs coming in by water and we are going to start now hitting land, with regard to the cartels. The cartels are running Mexico. It’s very sad to watch.”

On Monday, Mexico President Claudia Sheinbaum said she had “a very good conversation” with Mr. Trump and insisted that U.S. intervention against cartels was unnecessary.

“We told him, so far it’s going very well, it’s not necessary, and furthermore there is Mexico’s sovereignty and territorial integrity and he understood,” she said.

ALEPPO, Syria — The Syrian army on Tuesday declared an area east of the northern city of Aleppo a “closed military zone,” potentially signaling another escalation between government forces and fighters with the Kurdish-led Syrian Democratic Forces.

Several days of clashes in the city of Aleppo last week that displaced tens of thousands of people came to an end over the weekend with the evacuation of Kurdish fighters from the contested neighborhood of Sheikh Maqsoud.

Since then, Syrian officials have accused the SDF of building up its forces near the towns of Maskana and Deir Hafer, about 60 km (37 mi) east of Aleppo city, something the SDF denied.

State news agency SANA reported that the army had declared the area a closed military zone because of “continued mobilization” by the SDF “and because it serves as a launching point for Iranian suicide drones that have targeted the city of Aleppo.”

On Saturday afternoon, an explosive drone hit the Aleppo governorate building shortly after two Cabinet ministers and a local official held a news conference on the developments in the city. The SDF denied being behind the attack.

The army statement Tuesday said armed groups should withdraw to the area east of the Euphrates River.

The tensions come amid an impasse in political negotiations between the central state and the SDF.

The leadership in Damascus under interim President Ahmad al-Sharaa signed a deal in March with the SDF, which controls much of the northeast, for it to merge with the Syrian army by the end of 2025. There have been disagreements on how it would happen.

Some of the factions that make up the new Syrian army, formed after the fall of former President Bashar Assad in a rebel offensive in December 2024, were previously Turkey-backed insurgent groups that have a long history of clashing with Kurdish forces.

The SDF has for years been the main U.S. partner in Syria in fighting against the Islamic State group, but Turkey considers the SDF a terrorist organization because of its association with the Kurdistan Workers’ Party, or PKK, which has waged a long-running insurgency in Turkey. A peace process is now underway.

Despite the long-running U.S. support for the SDF, the Trump administration in the U.S. has also developed close ties with al-Sharaa’s government and has pushed the Kurds to implement the March deal.

Shams TV, a station based in Irbil, the seat of northern Iraq’s semi-autonomous Kurdish region, had been set to air an interview with al-Sharaa on Monday but later announced it had been postponed for “technical” reasons without giving a new date for airing it.