Police in Haiti have fired volleys of tear gas to break up a large march by demonstrators calling for the ouster of President Michel Martelly.

An estimated 5,000 protesters marched through downtown Port-au-Prince and some burned tires and blocked streets in the congested capital. Police dispersed Thursday’s demonstration and there were no reports of serious injuries.

Opposition leader Andre Michel says they are calling for Martelly’s removal because of widespread corruption in Haiti’s government and the failure of his administration to improve jobs, schools and health care in the impoverished country.

Anti-government protests have grown increasingly common in recent months. Martelly has accused his opponents of fomenting instability and blocking legislation that would help Haiti. The president is mid-way through a six-year term.