Police are searching for a gunman who shot dead two students and injured nine others at Brown University in Providence, Rhode Island.

The attacker was described as a man dressed all in black who fled on foot, prompting a shelter-in-place warning in the surrounding area of the prestigious university.

The shooting increased the count of mass shootings in the US to 389 this year, as reported by the Gun Violence Archive, which defines a mass shooting as four or more victims killed or injured, excluding the attacker.

Here's what we know:

The gunman opened fire at around 4 PM local time in the Holley engineering building, where final exams were being conducted. Eyewitnesses reported that the shooter entered yelling and began shooting, causing panic among students.

Victims: Two students were killed, and several others are being treated in various conditions. While the identities of the victims have not been disclosed, Brown University President Christina Paxson expressed her devastation at the tragedy.

The Suspect: Police have released CCTV footage showing a male suspect wearing black leaving the scene. Investigators are working diligently to identify and apprehend the suspect, who has not been confirmed as a student.

Current Status: An extensive search involving around 400 officers is ongoing as a precaution to ensure the safety of the community. Residents have been urged to stay indoors until further notice, while expressions of condolences have poured in from various leaders, including US President Donald Trump.