* 22 migrants found alive on upturned boat * Survivors estimate 18 still missing * Inflatable boat spotted 4 miles off Moroccan coast (Updates with new estimate of number of missing) MADRID, June 4 (Reuters) - About 18 migrants trying to reach Spain from Africa were missing in the Straits of Gibraltar on Thursday after their boat overturned, Spanish emergency services said. Coastguards found 11 men and 11 women -- one of them pregnant -- on the hull of the upturned boat 10 miles south of Tarifa, Spain's most southerly tip, a local government spokeswoman said.The Spanish coastguard said the survivors had told it that the inflatable boat was probably carrying around 40 people, meaning 18 were still missing. All were from sub-Saharan Africa but it was not known from which country. "The area is being searched by helicopter. At the moment we haven't found any floating corpses," the local government spokeswoman said. Attempts by African migrants to get to Spain across the narrow straits from Morocco are rare because of tight vigilance by Moroccan security forces. Many live in the woods surrounding Spain's North African outposts, Ceuta and Melilla, and periodically try to jump lines of razor wire fence. Thousands more sail up to 1,000 km from West Africa to Spain's Canary Islands in open wooden boats. About 9,000 arrived there last year -- a drop of three-quarters from the 2006 peak following more naval patrols and deportations. Many more are believed to die in the attempt. (Reporting by Emma Pinedo and Ben Harding; writing by Ben Harding; Editing by Richard Balmforth)
Women carry drinking water collected from a tubewell located about 10 km (6.2 miles) from their home in Shathkhira June 4, 2009. Cyclone Aila has displaced millions of people in India ...
