WASHINGTON, 18 September 2021, (TON): Some 10,000 migrants have gathered under a US-Mexico border bridge over recent days, leading to a growing humanitarian crisis.

The bridge connects Del Rio in Texas to Mexico's Ciudad Acuña and the temporary camp there has grown with staggering speed in recent days.

The mostly Haitian migrants, who have crossed the Rio Grande, are sleeping under the bridge in squalid conditions.

The US government has been facing a surge of migrants at the border.

Earlier this year, it was reported that the number of migrants detained at the US-Mexico border in July exceeded 200,000 for the first time in 21 years, government data shows.

And last month, the authorities arrested more than 195,000 migrants at the Mexican border, according to government data released on Wednesday. This summer's numbers represent a significant increase from the 51,000 arrested in August 2019.

The makeshift camp has few basic services, and migrants waiting in temperatures of 37C (99F) are said to be going back to Mexico to get supplies.

Migrants seeking asylum in the US bathe in the Rio Grande river near the International Bridge between Mexico and the US, where they wait to be processed, in Del Rio, Texas, on 16 September 2021

They are said to be mostly Haitians, with some Cubans, Venezuelans and Nicaraguans also present, reports say.