(NEWSER) – Exactly what authorities looking to calm tensions in Ferguson, Mo., didn't want to happen: Two St. Louis police officers shot and killed a man wielding a knife this afternoon, reports the St. Louis Post-Dispatch.

Details are still sketchy, but police say the man brandished a knife inside a convenience store and was followed outside by an employee.

When the two officers arrived at the scene, they say the man refused their orders to drop the knife and threatened them with it.

Read the original story at Newser