Gaza conflict: Hamas denies holding Israeli soldier
Hamas says it does not know the whereabouts of an Israeli soldier it had been accused of capturing in Gaza.
The Islamist group's military wing says it lost contact with some fighters in the area and that they and Hadar Goldin, 23, may have been killed.
His supposed capture and the violence that followed ended a 72-hour ceasefire just hours after it had begun.
Earlier, US President Barack Obama described the crisis as "heartbreaking" and said he would work to secure another truce.
Jon Brain reports.