What do we know about the school shooting in Iowa?

Republicans have reacted with prayers following the Perry school shooting but no proposals to change gun laws.

A sixth grade student has been killed and four others, including three students and a school administrator, have been injured in a school shooting in Iowa. Only one victim has been identified by name.

Here are the details:

The shooting took place at Perry Middle and High School, in Perry, Iowa at 7:30am (13:30 GMT) on Thursday before the first day of classes had even begun. The shooting triggered an immediate police response as emergency vehicles and armed units rushed to the school.

Responding authorities also found a “pretty rudimentary” improvised explosive device in the school, which they disabled.

Among those injured was a school administrator, who was later identified by his alma mater as Principal Dan Marburger. He is the only victim of the shooting who has been identified by name.