Bajo Nuevo Bank, also known as the Petrel Islands (), is a small, uninhabited reef with some small grass-covered islets, located in the western Caribbean Sea at , with a lighthouse on Low Cay at . The closest neighbouring land feature is Serranilla Bank, located to the west. The reef was first shown on Dutch maps dating to 1634 but was given its present name in 1654. Bajo Nuevo was rediscovered by the English pirate John Glover in 1660. The reef is now subject to a sovereignty dispute involving Colombia and the United States. On 19 November 2012, in regards to Nicaraguan claims to the islands, the International Court of Justice (ICJ) found, unanimously, that the Republic of Colombia has sovereignty over both Bajo Nuevo and Serranilla Banks, although the judgment does not analyze or mention the competing claims of Honduras or United States. Geography Bajo Nuevo Bank is about long and wide. The satellite image shows two distinct atoll-like structures separated by a deep channel wide at its narrowest point. The larger southwestern reef complex measures northeast-southwest, and is up to wide, covering an area of about . The reef partially dries on the southern and eastern sides. The smaller northeastern reef complex measures east-west and is up to wide, covering an area of . The land area is minuscule by comparison. The most prominent cay is Low Cay, in the southwestern atoll. It is long and wide (about ), no more than high, and barren. It is composed of broken coral, driftwood, and sand. The light beacon on Low Cay is a metal tower, painted white with a red top. It emits a focal plane beam of light as two white flashes of light every 15 seconds. The beacon was erected in 1982, and reconstructed by the Colombian Ministry of Defence in February 2008. It is currently maintained by the Colombian Navy, and overseen by the state's Maritime Authority. Territorial dispute Bajo Nuevo Bank is the subject of conflicting claims made by a number of sovereign states. In most cases, the dispute stems from attempts by a state to expand its exclusive economic zone over the surrounding seas. Colombia currently claims the area as part of the department of Archipelago of San Andrés, Providencia and Santa Catalina. Naval patrols in the area are carried out by the San Andrés fleet of the Colombian Navy. Colombia maintains that it