The US will increase security measures at a number of overseas airports that have direct flights into the country, the Department of Homeland Security said.
In a statement, Secretary Jeh Johnson said:
"We are sharing recent and relevant information with our foreign allies and are consulting the aviation industry."
Officials said the Obama administration was pushing for the tighter security measures because of concerns that al-Qaeda operatives in Syria and Yemen were working together to develop bombs capable of being smuggled onto planes.
More top news
The actor speaks out on why Oscar Wilde's pardon is not good enough, as he takes on the role of the playwright in a new film.
A 61-year-old woman was taken to hospital with head injuries after the incident in Islington, north London.
The suspect is believed to have acted alone at Noblesville West Middle School, in suburban Indianapolis.