Shortages of fuel, food, medicines and vaccines are putting more than three million infants at risk of death or disease as winter begins in Nepal, the UN children’s fund (Unicef) has warned.
It said the situation had been worsened by more than two months of political unrest in the south of the country.
A blockade has severely hit the import of key goods by land from India.
The blockade is led by ethnic communities angered by Nepal’s recently promulgated new constitution.
The Madhesi communities say the new constitution does not represent them properly.
The government accuses India of deliberately worsening the embargo, but India denies this.
The blockade is being enforced while Nepal is still recovering from powerful earthquakes earlier this year which left up to 9,000 people dead.