Student visa training programmes often serve as a bridge for those seeking work under H-1B visas. (File pic)

WASHINGTON: The US homeland security department (DHS) has proposed that international students pay at least US$70,000 in training fees if they want to work in the country, according to a government notice posted online on Wednesday, part of the Trump administration's wider crackdown on foreign visa holders.

Under the proposal, nonimmigrant students with F-1 visas would be required to pay US$70,000 to a certified institution for on-the-job training, known as Optional Practical Training (OPT), and US$30,000 for any additional work training.

DHS said the new rules were meant "to combat fraud, strengthen the integrity of the immigration system, and protect US workers."