An airport serving Mexico's fourth-largest city has suspended operations due to volcanic ash from the Popocatepetl volcano. The international airport in Puebla was temporarily closed as a precautionary measure. The airport is east of Mexico City and about 20 miles (30 kilometers) from the 17,886-foot (5,450-meter) volcano. Airport spokesman Herbert Lopez Palma said Friday that the ash could pose a risk in takeoff and landing. Flights to several Mexican cities as well as to Dallas and Houston, Texas, use the airport. Authorities said this week that a lava dome is growing inside the crater and could cause further eruptions. http://english.ahram.org.eg/News/76339.aspx