CATIA LA MAR, Venezuela (AP) — Victims of the powerful twin earthquakes that jolted Venezuela last month as well as people spared by the destruction on Thursday flooded relief services offered by nongovernmental organizations in the hardest-hit areas. The demand for help comes as the United Nations launched an appeal for roughly $300 million to assist 1.3 million people in urgent need of aid in the South American country where nongovernmental organizations until recently were targets of government repression. Mobile kitchens and clinics as well as field hospitals now dot public spaces in the northern state of La Guaira, where most of the devastation occurred.“It is clear at displacement sites that, particularly after two weeks, that people are turning up because they haven’t been able to get their other treatments,” U.N. relief chief Tom Fletcher told The Associated Press during his visit to Venezuela. “So, they’re not turning up with just the fractures now, they’re turning up with those longer-term health needs. And it’s vital that we’re there for them.”Doctors treating people in that state’s Catia La Mar community on Thursday reported an increase in skin conditions and diarrheal diseases, as well as of requests for medications for the treatment of chronic illnesses, including diabetes and high blood pressure. The emerging diseases can be tied to crowded living spaces and poor water and sanitation conditions, which in many communities predate the earthquakes.