The Trump administration on Thursday proposed a significantly larger force to wrest control of Haiti from the clutches of brutal gangs that have set off a major humanitarian crisis.

The move is an acknowledgment that a Kenyan-led international security mission on the ground for more than a year has largely failed to crush the explosion of gang violence in the Caribbean nation.

The United States and Panama presented a draft proposal to the U.N. Security Council on Thursday that would create a “gang-suppression force” with a maximum of 5,550 uniformed personnel. The force would have arrest and detention powers and more military-grade capabilities and lethal equipment.

The plan would also mandate a U.N. office in Haiti to supply logistical and operational support, which would help provide more stable funding, a key issue that has hampered the current security mission.

It was unclear whether the new plan would replace the Kenyan officers or expand on the force already in Haiti. A spokesman for the Kenyan-led force did not return a request for comment.

The Haitian prime minister’s office and a spokeswoman for the presidential council that runs the country also did not respond to a request for comment.