7:30 PM IST
An aeroplane appeared above Headingley during the Afghanistan v Pakistan with a message saying "Justice for Balochistan". Not long after, there was another: "Help end disappearances in Pakistan".
A big World Cup match, with the international media in attendance, it certainly got the attention it expected, but the ICC isn't too pleased about it.
"We work with local police forces around the country to prevent this type of incident occurring and were assured that given Headingley is under the flight path for the Leeds Bradford Airport it would not be an issue," an ICC statement read. "We do not condone any sort of political messages at the ICC Men's Cricket World Cup and will work with West Yorkshire police to deal with and understand why this has happened and to ensure it doesn't happen again."
As well as the banners, there have been chants in favour of Khalistan at the grounds during Pakistan's last two games in Edgbaston and Leeds. Khalistan was a political movement for secession in India's Punjab, at its peak in the 1980s.