The Delhi government has issued an advisory to all hospitals in the city after five suspected cases of swine flu were reported this week. The Health Department's advisory asks the hospitals to make adequate arrangements for the affected patients. The advisory comes in the wake of four people reportedly dying of the flu in the national capital region. Three people have died in city hospitals while one died in Gurgaon. The government said it is closely monitoring the situation and supply of Tamilflu is being maintained.