Good morning and welcome to the BBC's live coverage of the Israel-Gaza violence. Stay with us for the latest updates, incorporating reports from our correspondents on the ground, expert analysis, and your reaction from around the world, which you can send via email, text or twitter. We'll publish what we can.
The IDF says it carried out two attacks at 0200 and 0650 local time "targeting antennas" on buildings "being used by Hamas to communicate with its forces in the field".
Wyre Davies, BBC Middle East correspondent
tweets: For those who asked. Doctors say at least half of the 48 #Palestinians killed in the last 4 days were civilians.
0703 Jon Leyne, BBC Middle East correspondent
Cairo is the centre of intense diplomatic activity, trying to end the Gaza conflict. Egypt is leading the mediation efforts. Also currently in town are the Hamas leader, Khaled Mashal, and two other key regional players - the Emir of Qatar and the Turkish prime minister. There's little evidence on the ground that either Israel or Hamas are ready yet to step back from confrontation, but the Egyptian leader President Morsi expressed optimism that a ceasefire might be possible soon.
According to the Israeli military two rockets were fired from Gaza at approximately 0800 local time, the first since yesterday. They landed on open ground near the border with no injuries or damage.
Medical sources in Gaza say an 18 month-old baby has died in an Israeli air strike east of the Bureij refugee camp.
After attacking a media centre used by foreign journalists and pro-Hamas media outlets, Israel appears to have taken over the frequencies of the radio stations of Hamas and Islamic Jihad. A message was broadcast in Arabic warning people to stay away from Hamas. It said the IDF was "moving toward the second phase of its operation".