Venezuela’s opposition leader Juan Guaido said Monday that his team had delivered its first round of humanitarian aid amid objections from President Nicolas Maduro, Reuters reports.

“Today we delivered the first donation, or the first cargo of humanitarian aid, albeit on a small scale, because you know they have blocked the border for the time being,” Guaido, 35, said in televised remarks in Caracas on Monday evening.

Cumpliendo con nuestras competencias, hoy entregamos el primer cargamento de insumos de la #AyudaHumanitaria a la Asociación de Centros de Salud (AVESSOC)

con 85 mil suplementos que se traducen en 1.700.000 raciones nutricionales para niños y 4.500 suplementos para embarazadas. pic.twitter.com/9cbeyPig3C

— Juan Guaidó (@jguaido) February 11, 2019

Supplies sent to Venezuela had so far been stockpiled and blocked by the military from entering the crisis-stricken country. Guaido said the aid was being held at collection points in Brazil, the Colombian border town of Cucuta, and a Caribbean island.

While a large number of Western nations, including the U.S. and much of the European Union, have backed Guaido as the country’s de facto interim president, there are few signs that the military-backed Maduro will loosen his grip on power.

Under Maduro’s rule, rates of malnutrition and preventable diseases have soared in the oil-rich country, which once was one of the wealthiest in Latin America.