Initial reports suggest the fire may have been triggered by an air-conditioner explosion, though the exact cause is yet to be confirmed. Bangladeshi nationals killed as fire tears through Kolkata hotel several injured Key points and original sources are listed below.

• Initial reports suggest the fire may have been triggered by an air-conditioner explosion, though the exact cause is yet to be confirmed.S1

• Bangladeshi nationals killed as fire tears through Kolkata hotel several injuredS2