Bengaluru, Nov. 1 -- Two foreign guests died and two men who went in to rescue them were injured after the swimming pool at Bengaluru's Conrad hotel apparently became electrified on Friday evening, shortly after the pool's evening lights were switched on, according to hotel staff cited by police. Police have registered a case of causing death by negligence against the hotel management and asked the electrical inspectorate to examine the hotel's installations, including the pool's underwater lighting and whether the circuit had a device that cuts power automatically on a fault. A Bangalore Electricity Supply Company (Bescom) official said on Saturday evening that the earthing may have been faulty. The dead are Alexander Maximilian Theiss, 52, a German national and Lufthansa crew member who was in the city on a layover, and Juraj Horvat, 45, a Slovak national who worked as a project manager with IBM in Bengaluru. Matthew DeSantis, 41, a US national staying at the hotel, and pool attendant Rahul Tiwari, 28, were injured while trying to rescue them. A senior police officer, citing hotel staff, said Theiss and Horvat entered the third-floor pool between 4.30pm and 5pm, and three or four other swimmers were in the water around 5.30pm, when someone switched on the lights. "The victims apparently got electrocuted," the officer said. The other swimmers got out unhurt. "The two victims were deep inside the pool and cried for help. Desantis, who was also in the pool, rushed towards them but felt a strong current and swam to safety. He was closer to the wall and therefore managed to come out safe," said Halappa Balareddy, inspector at Halasuru police station. "Hearing their cries, Tiwari also tried to save them and sustained injuries." Lufthansa confirmed that one of its crew members died during a layover in Bengaluru and offered condolences to his family and friends, but declined to name him or give his designation, citing privacy. A Conrad spokesperson said the hotel was "deeply saddened" by the deaths of two guests. "The cause of the incident has not yet been established and remains subject to a comprehensive investigation by local authorities. We are offering our full support to their investigation," the spokesperson said. All four were taken to Manipal Hospital. "One was brought dead, another died during treatment and the other two were injured," the hospital said, adding that the two injured men are stable. Police were informed around 11pm, when Horvat died, nearly six hours after the incident, said Vikram Amathe, deputy commissioner of police (East). "According to a preliminary investigation, electrocution caused the deaths," he said. "We have informed electricity inspectorate department officers to ascertain the cause of death." The case was registered around 5am on Saturday on a complaint by Horvat's wife, under section 106 of the Bharatiya Nyaya Sanhita. Another officer said power to the pool was cut off immediately, and that investigators will examine whether safety measures, including an automatic power switch-off, were in place. Police said they will also examine the pool's wiring, underwater lighting, maintenance records and safety arrangements, and whether a technical malfunction or negligent upkeep caused the deaths. CCTV footage is being checked, staff are being questioned and eyewitness statements are being recorded. Horvat's family has not alleged foul play, police said. Balareddy said Horvat had checked into the hotel with his family on October 30....