flights are being disrupted as jonathan joseph reports. >> the destructive -- as disruptive as it is spectacular. these pictures film from an air force plane shows the volcano range is still erupting. the volcanic ash being pumped into the air is still grounding planes across south america. the volcanologists on board are hoping to learn more about the eruptions which started on the fourth of june. passengers of one of latin america's largest airlines face delays. the company says that services in argentina have seen the most destruction. in parts of argentine patagonia, a state of emergency is being declared. the air is thick with volcanic ash and it has made the streets look dirty and gray. the province has allocated $50 million for the cleanup. the volcanic ash is clogging new zealand's air space with thousands stuck at airports. the clouds of ash are reported to be thinning out. volcanoes are notoriously hard to predict so there are limited hopes that the interruptions may be coming to an end. jonathan joseph, bbc news. >> the crew out of a merchant ship held captive for year tha

joseph norris was best known for creating giant mosaic of glass tile. but tonight police say that some of the tile installed at school contain sexual image. jonathan bloom reports. >> tens of thousands of tile make up the giant mural artist anthony joseph more norris built all over san francisco often with the help of school children. but in between the pictures of trees and animals police say they found something that wasn't so innocent. >> last week the city was made aware that offensive images had been embedded in some of the mural on city property. >> hiden in speed limit of the tiny glass tile only an inch wide pictures that police say carry a sexual theme. >> negative of photograph that is inlaid behind the clear tile itself i think as an adult you look at the tiles and sea possibly if some sort of sexual connotation to them. >>reporter: in all police say they found about 100 of the inappropriate tiles spread across 4 different mural including one here at sunset elementary. the chief says it is unlikely kids would have stumbled upon the tiles on their own. >> the tiles are very small. you would have to get close to the tiles to be able to se