A student detained Monday over a bomb scare at MacArthur High School will not face charges after police determined he didn’t intend to create alarm with a device school officials called “suspicious.” In a news conference late Wednesday morning, Police Chief Larry Boyd said the incident began when Ahmed Mohamed, 14, showed the device to a teacher at his school. An image of the device, which was later determined to be a clock created by Mohamed, was released by authorities at the time of the news conference.

Tuesday, police said the teen’s English teacher first noticed the clock when Mohamed plugged it into an electrical socket and it began to make noise. “[His English teacher was] concerned it was possibly the infrastructure for a bomb,” Boyd said of what led to the student’s detention. In a strange response, President Barack Obama tweeted to Mohamed late Wednesday morning, inviting the teen to the White House. FULL REPORT