Even though the Sava River bridge is in operation, it requires constant maintenance and reinforcement.

CNN: Bosnia begins peaceful 1996

Carabine said the fighting Sunday was constant throughout the day, but less intense than Saturday, when the operation began.

CNN: U.S. Marine killed in Anbar offensive

Hannah initially said that the operation might not work, and if it did, she would need constant medication.

BBC: Transplant for heart refusal girl

By the day of her operation, in December 2009, she had stopped working because of the constant, agonising pain.

BBC: 'I'm lucky to have survived pancreatic cancer'