MOSCOW (Reuters) - Russia has opened a training center in Venezuela to help the country’s pilots fly Russian-made military helicopters, Russian state-owned industrial conglomerate Rostec said on Monday, Moscow’s latest gesture of support for President Nicolas Maduro.

Rostec said the center was inaugurated on Thursday last week, the same day as the White House warned Moscow and other countries backing Maduro against sending troops and military equipment, saying the United States would view such actions as a “direct threat” to the region’s security.

Washington, which backs Venezuelan opposition leader Juan Guaido, issued the warning after two Russian air force planes carrying nearly 100 military personnel landed outside Caracas, a contingent the Kremlin described as military specialists.

Rostec said the new training facility, the location of which it did not disclose, had been set up with the help of Russian specialists and was designed to train Venezuelan pilots to fly Russian-made Mi-35M helicopter gunships as well as Russian-made military transport helicopters.

The facility was opened under a contract with Venezuelan state-owned weapons maker CAVIM. Rostec said it wanted to deepen military and technical cooperation with Venezuela’s ministry of defense if possible.

Russia, which has also supplied fighter jets, tanks, and air defense systems to Venezuela, has dismissed U.S. criticism of its military cooperation with Caracas saying it is not interfering in the Latin American country’s internal affairs and poses no threat to regional stability.

U.S. President Donald Trump has said that “Russia has to get out” of Venezuela and that “all options” are open to force it to reduce its help for Maduro, raising the prospect of new U.S. sanctions against Moscow.