The UK government sent an emergency alert last Friday. The alert warned people about dangerous wildfires. It went to mobile phones in Wales and England.
In Wales, the message arrived in Welsh first. The English message arrived a few minutes later. This caused a big debate online.
Some politicians say the English message must come first. They say most people in Wales do not speak Welsh. They think waiting for English is dangerous.
Others disagree. They say the Welsh language is important for the country. They say the two messages were very close together.
The government says the law requires Welsh alerts first.