The art is of undetermined origin and age but is "centuries old".

At about 15:51, she recorded an underwater shock of undetermined origin and reported it to her escort.

That night after the game, a fire of undetermined origin destroyed the ballpark.

From what she understood, those white grains had been part of a woman of undetermined alien origin not so very long ago.

In an emergency of undetermined origin, the animals were to be brought to master control.

The patient had been hospitalized with encephalitis of undetermined origin in September 2005.

On August 30, 1958, the school was razed by fire of undetermined origin.

A bacterial infection of undetermined origin had led to double pneumonia.

On Friday, a French soldier was shot and killed by sniper fire of undetermined origin.

The hotel was destroyed by a fire of undetermined origin on April 22, 1918.