BREAKING: Multiple casualties reported as shooter storms US nightclub

BREAKING: Multiple casualties reported as shooter storms US nightclub

At least four people have reportedly been injured in a shooting at a nightclub in Memphis, Tennessee.

Police were called to the Purple Haze nightclub at Lt. George W. Lee/2nd Street in downtown Memphis just before 3.30am this morning when a gun person opened fire, shooting four people. News outlets allege that a fifth victim suffered an undisclosed injury.

One person is said by the Memphis police department to be in a critical condition, while the other three are non-critical. No arrest has been made so far.

The area around the bar was put on lockdown and police and fire engines were on the scene after shots were fired. Four victims were allegedly taken to Regional One Hospital by members of the Memphis Fire Department and another was taken to a local Methodist hospital.

Following the incident, management at Purple Haze let out a statement that offered "deepest sympathies and prayers for quick healing" to the victims of the attack. It also questioned how firearms got past their "strict security procedures" and claimed they were cooperating with the police in their investigation into the incident.

"We are cooperating fully in the ongoing investigation into this unfortunate incident," it read. "We offer our deepest sympathies and prayers for quick healing to those that were injured, including one of our very own security officers, in the altercation that happened at Purple Haze Nightclub early this morning."

It continued: "While measures were in place to detect the possession of firearms as patrons enter the club we are unsure at this time how those that discharged firearms were able to do so despite our strict security procedures. As the safety and security of our guests and employees are our utmost concern we are temporarily closing for two weeks to review operations."

No further details are known at this time.