A rhino calf hides behind a bush Thursday after it strayed into a nearby village after floods at the Kaziranga National Park in India. Forest officials say they have rescued six rhino calves from being washed away by floodwaters. (Anupam Nath/AP)

Wildlife workers have rescued six rhino calves from being washed away by floodwaters that have swamped a national park in northeastern India.

Torrential monsoon rains have caused widespread flooding in Assam state and forced about 1.2 million people to leave their water-logged homes. The rains have also flooded vast portions of the Kaziranga National Park, home to the world’s largest population of the one-horned rhinoceros.

Six baby rhinos have been rescued since the floods began last week, said Rathin Barman, an official at a wildlife research and conservation center in Kaziranga.

On Thursday, wildlife workers covered the face of a baby rhino with a cloth to prevent it from getting alarmed before moving the animal to the conservation center.

All of the rescued rhinos will stay at the conservation center for now and will be released in the wild once the floodwaters recede.

Indian forest officials and wildlife conservationists try to catch one of the baby rhinos. The calf was rescued and sent to a conservation center. (Anupam Nath/AP)

At least one rhino drowned in the floods. Forest guards found its remains earlier this week in the park, which is alongside the mighty Brahmaputra River.

The river was overflowing the danger mark at several places and had breached its banks at others, Assam’s disaster management officials said.

The number of Indian rhinos, also called greater one-horned rhinos, fell to about 200 in the early 20th century, according to the International Rhino Foundation. Because of conservation efforts, nearly 3,500 are alive today.