President Trump on Wednesday threatened to send additional armed US troops to the southern border after a Mexican soldier removed a weapon from a US patrol in Texas earlier this month.

“Mexico’s Soldiers recently pulled guns on our National Guard Soldiers, probably as a diversionary tactic for drug smugglers on the Border,” Trump wrote on Twitter.

“Better not happen again! We are now sending ARMED SOLDIERS to the Border. Mexico is not doing nearly enough in apprehending & returning!”

US officials told Reuters that they are expecting a request from the Department of Homeland Security in coming days for additional troops to supplement thousands already there since late last year, although that number is expected to be in the low hundreds. Some of the troops currently stationed at the border are armed.

Trump was referring to an incident earlier this month when Mexican troops removed a weapon from one of two US service members in a remote area of Texas.

The Mexican soldiers thought that the Americans had crossed into Mexico.

US Northern Command, which oversees military support for Customs and Border Protection, confirmed that the Americans were in an official vehicle south of a border fence — but north of the border — on April 13 when confronted.

Mexico’s foreign relations ministry blamed the encounter on “routine” confusion in an area where the border between the two countries isn’t clearly defined.

Mexican President Andrés Manuel López Obrador said he will launch an investigation to determine what happened.

“We are not going to fight with the government of the United States,” he said. “The most important thing is that we want a relationship of mutual respect and cooperation for development.”

When asked if Trump would indeed dispatch more troops, White House adviser Kellyanne Conway said he “may.”

“I think the president is just making clear, as he always has, that he has many different actions at his disposal to try to stop this humanitarian crisis,” Conway said Wednesday.

There are 4,350 active-duty military personnel at the border, but many are involved in surveillance and erecting concertina wire.

The president also warned another group of Central American migrants was heading to the US.

“A very big Caravan of over 20,000 people started up through Mexico. It has been reduced in size by Mexico but is still coming,” Trump tweeted about the group, which is now estimated at about 3,000.

With Post wires