Texas Running Out of Execution Drug

Manufacturers object to how they're being used

The US state of Texas is running out of a key drug used for lethal injections, according to officials.

Texas Department of Criminal Justice spokesman Jason Clark said that the state's supply of pentobarbital would end in September.

Texas has the highest execution rate in the country, with 11 inmates put to death so far in 2013.

Some drugs companies have objected to their products being used for capital punishment.