More than 250,000 Libyan children under 1 year of age are at risk from vaccine-preventable diseases as the country faces critical shortages in vaccine supplies, two United Nations agencies said Tuesday.

The United Nations International Children’s Emergency Fund (UNICEF) and the World Health Organization (WHO) said the situation has worsened with attacks by warlord Khalifa Haftar’s militias, the coronavirus pandemic, disrupted health care services, regular power cuts, shortages of safe water supplies and the closure of schools and child-friendly spaces.

“For the past two months, access to routine immunization services has been disrupted as a result of the COVID-19 lockdown, leading to an increased risk of a resurgence of measles and polio outbreaks,” UNICEF said.

“There are acute shortages of hexavalent vaccine, which protects against six diseases (diphtheria, tetanus, pertussis, poliomyelitis, Haemophilus influenzae type b and viral hepatitis B). Similarly, oral polio vaccine, which is administered at birth and at 9 months of age, is in critically short supply,” they said in a joint statement.

Children in hard-to-reach and conflict-affected areas are at particular risk because they may have already missed vaccination doses.

“WHO and UNICEF are also concerned that many migrant, refugee or internally displaced children may not have received their basic vaccination doses in their country of origin or may have missed the required doses in Libya,” it added.