Indore recorded its highest single-day spike on Tuesday that took the district's COVID-19 tally to 11,673, an official said.According to officials, the health department has been ramping up treatment facilities for critical patients in hospitals to ease the pressure on intensive care units.As many as 265 persons tested positive for coronavirus infection in the last 24 hours, rising the tally in the Madhya Pradesh's worst-hit district to 11,673, the official said.Moreover, the deaths of four COVID-19 patients in the last five days has increased the toll in the district to 368, he said.An analysis of government data shows that the district has registered the fastest rate of viral spread in August.As per official data, at least 4,225 new cases.