Families of hostages held in Gaza are stepping up their campaign to secure their release by holding a strike across Israel.

Large crowds of Israelis took to the streets on Sunday, launching a nationwide grassroots strike and widespread protests to demand the government secure the release of 50 hostages still in Gaza.

Amid reports Hamas has accepted a deal to release half of the hostages who are still alive, Israeli official says the country still rejects partial deals that do not free all of the hostages.