PORT-AU-PRINCE, Haiti – Protesters in Haiti’s capital are lashing out at U.N. peacekeepers and the government, blocking roads and attacking foreigners’ vehicles.

Demonstrators are setting up burning barricades, and Haitian police have fired tear gas.

U.N. and non-governmental organization vehicles have been pelted with rocks.

The growing protest comes a week before national elections, and marchers are destroying campaign posters for President Rene Preval’s Unity party.

It follows days of rioting in northern Haiti over suspicions that U.N. soldiers introduced a cholera epidemic that has killed more than 1,000 people.

The U.N. military mission denies responsibility for the epidemic.