Another ISIS terror message found at Mumbai airport

According to a senior security official, quoted in NDTV, "The terminal is already under watch after Air India received threat and hijack calls earlier this month. After the T2 message, security was beefed up and today's messages will ensure that the security will be strengthened even further, especially on the city side."

With no CCTV cameras inside the washroom, the CISF is analysing footage from outside the washroom as well as getting experts to analyse the handwriting in both the notes.