Rabat (Arabic الرباط, transliterated ar-Rabāṭ or ar-Ribāṭ, literally "Fortified Place"), is the capital and third largest city of the Kingdom of Morocco with a population of approximately 650,000 (2010). It is also the capital of the Rabat-Salé-Zemmour-Zaer region.The city is located on the Atlantic Ocean at the mouth of the river Bou Regreg. On the facing shore of the river lies Salé, Rabat's bedroom community. Together with Temara the cities account for a combined metropolitan population of 1.8 million. Silting problems have diminished the Rabat's role as a port; however, Rabat and Salé still maintain important textile, food processing and construction industries. In addition, tourism and the presence of all foreign embassies in Morocco serve to make Rabat one of the most important cities in the country. Controversy surrounds sweatshop labour by major multinational corporations in the area (see Salé).Rabat is accessible by train through the ONCF system and by plane through the nearby Rabat-Salé Airport.