Guyanese authorities say they're seeing a significant increase in Venezuelans crossing the border seeking treatment for malaria and other ailments.

Shamdeo Persaud is chief medical officer at the Medical Council of Guyana. He says the Venezuelans are being treated without charge.

Persaud said Sunday that there's a confirmed spike of malaria cases across the and officials are probing reports of a in Venezuela, which is facing political and .

Cleveland DeSouza is a leader at in White Water indigenous district. He says as many as 200 Venezuelans cross the border on some days.

Guyana's Indigenous Affairs Ministry says Venezuelan soldiers recently crossed the border and stole food, telling locals they hadn't been resupplied for 45 days.