YANGON, Myanmar: Aid continued to arrive in Myanmar on Tuesday - a darkly clouded and rainy day here and in the south - but international aid experts and diplomats in the capital expressed concern that the government was not up to the task of delivering the aid effectively. Myanmar continued to restrict most large-scale deliveries of relief supplies into the country, aid officials said. Relief workers were facing the challenge of getting supplies to the people who needed it most, often in remote and inaccessible regions. Pressure continued on the military government to open its doors as the UN secretary general, Ban Ki Moon, called on the military junta to accept international assistance. Two more American relief flights landed Tuesday, after one sent Monday, and U.S. officials said they were talking to the government about expanding the relief program to help the hundreds of thousands of people affected by the cyclone that smashed the country on May 3. Myanmar state television said Tuesday that the death toll had climbed to 34,273, while an additional 27,838 people were missing, The Associated Press reported. Andrew Kirkwood, country director in Myanmar for Save the Children, said that he had surveyed the Irrawaddy Delta by air in recent days and that trucks and helicopters would not suffice to deliver the aid. The vast majority of people will have to be reached by boat, he said. The government reportedly has five working helicopters. Shari Villarosa, the top U.S. diplomat in Myanmar, said Washington had offered to send search-and-rescue teams and disaster-relief specialists, but the junta had refused. She said the government had also rebuffed offers from Bangladesh, China, Singapore, Thailand and other countries. On Monday, Ban expressed deep concern and immense frustration with what he said was the government's unacceptably slow response to the crisis. In unusually blunt language for a UN leader, Ban said: "This is not about politics, it is about saving people's lives. There is absolutely no more time to lose." Meantime, several medical teams from the Swiss branch of Doctors Without Borders were ordered out of the delta Monday with no explanation. In Brussels on Tuesday, the foreign policy chief of the European Union, Javier Solana, said that if the government continued to block large-scale aid, outside donors should find a way to deliver it anyway. "We have to use all the means to help those people," he said, adding that "the United Nations charter opens some avenues if things cannot be resolved" to get the humanitarian aid to arrive. The New Light of Myanmar, a government newspaper, published photographs Tuesday showing the arrival and distribution of foreign aid. Among them were eight pictures of the U.S. deliveries, including one of the nose of an aircraft bearing the words, U.S. Air Force. In a report from Yangon, the official Xinhua press agency of China, which is a neighbor and friend of Myanmar, described a similar scene, but made no mention of delays. "International humanitarian aid has been pouring into Myanmar since last week, with aircraft carrying various relief materials from different countries and organizations landing at the airport one after another for Myanmar's homeless cyclone survivors," the Xinhua report said. The United States is conducting a military exercise with Thailand and has 11,000 troops and several ships in the area. The U.S. landings were the most public example of what aid groups said Monday was a slight easing of restrictions, though not nearly enough to provide for what they said was a desperate and increasing need. One group raised its estimate of the dead to between 62,000 and 100,000. President George W. Bush said the slow flow of aid suggested that the generals in charge were either isolated or callous. "It's been days, and no telling how many people have lost their lives as a result of the slow response," he told CBS News in a radio interview. "An American plane finally went in but the response isn't good enough." Kirkwood of Save the Children said his teams in the delta had seen no outbreaks of cholera yet, although he expected other diseases and diarrhea to start taking their toll soon, especially on children. "Children can die within 24 hours from diarrhea," he said, "and delivery of oral rehydration solution is one of the things we've prioritized. Water is not enough. It has to be water, sugar and salt, in the right combination." He said Save the Children had rented two boats from private owners and in the past two days had delivered 180 tons of rice, water and rehydration fluids to a remote island hit by the storm. He said aid had reached 9,400 people in 13 villages, including 2,350 children.