Gaza Ceasefire Threatened by Violence, Vance Arrives
Vance meets Israeli PM Benjamin Netanyahu until Thursday.
Violence flare-up on Sunday threatened 12-day Gaza ceasefire.
Israel claims militants crossed ceasefire line.
68,216 deaths in Gaza since war began.
153 tonnes of bombs dropped on Sunday.
13 bodies released since ceasefire began.
Vance pushes Netanyahu for long-term peace talks.
Vance holds Jerusalem news conference on Tuesday.
Vance meets families of released hostages.
Plan includes interim Palestinian government and Israeli troop withdrawal.
U.S. officials fear Netanyahu may break ceasefire deal.
2 weeks ago