or "(SINGAPURA)" under it. The same designation was used for an island that was unquestionably under Singapore's sovereignty. On the other hand, the designation was not used for Pulau Pisang, an island under Malaysian sovereignty on which Singapore operated a lighthouse. Singapore replaced the original kerosene-fired lamp of Horsburgh Lighthouse with automated navigational lights in the 1970s. In 1972, 1973, 1974 and 1978, the Port of Singapore Authority (PSA) considered the feasibility of carrying out reclamation of about of land around Pedra Branca, but did not go ahead with the project. On 30 May 1977, with the permission of the PSA, the Republic of Singapore Navy installed a military rebroadcast station which it shared with the Republic of Singapore Air Force. Subsequently, the PSA installed a helipad on the eastern half of the island, and a communications tower for its Vessel Traffic Information System for the 900-odd ships that pass daily through the south and middle channels which are the main shipping channels of the eastern part of the Singapore Strait. Present In the 1980s, Malaysian Marine Police boats entered the waters around Pedra Branca on several occasions. However, both Malaysia and Singapore acted with restraint, the Singapore Navy having been given strict instructions not to escalate matters. In 1989, the then Prime Minister of Malaysia Mahathir Mohamad made an unannounced visit to the vicinity of the island. His boat was intercepted by Singapore naval vessels. To avoid an international incident, he directed his boat to leave. With effect from 27 June 2002, Pedra Branca was declared a protected area within the meaning of the Protected Areas and Protected Places Act. Consequently, a permit from the Maritime and Port Authority of Singapore is required for access to the island, and unauthorised presence there is a criminal offence. On 6 October 2008, a Singaporean man, Roger Lee, was convicted of illegally landing on Pedra Branca. In court documents, he said he had gone to Batam, Indonesia, in 1998. He later married and started a family with an Indonesian woman, but she left him in 2007 due to his unstable income and inability to hold down a job. As he had illegally overstayed in Indonesia and had been cheated of his passport and other personal documents by a friend, Lee hatched a plan to pretend to be a lost fisherman in the hope that the Police Coast Guard would rescue him and