My 6 year 4 month old grandson has recently a high 107.3 fever followed a seizure

A. Actually the fever is extremely high usually some kids I’m saying some very rarely we’ve seen when kids have fever at 104 also they can have a seizure but 107 is extremely high on the boundaries which is I think your child may have had a seizure you really need to go for further scan for your child to know what maybe the reason is it just because of the fever or there’s any other