Israel's Gaza campaign in seventh day as rocket fire continues --- Israeli air strikes on Gaza and rocket fire on Israel have continued, on the seventh day of Israel's operation against Palestinian militants. --Palestinian officials say at least 175 people in Gaza have been killed since the offensive began last Tuesday. -- Israel says nearly 1,000 rockets have been fired from Gaza in that time. It said it shot down a Palestinian drone near Ashdod on Monday morning. -- Thousands of people have fled homes in northern Gaza after an Israeli warning. -- Israel has massed thousands of troops on the border, amid speculation of a possible a ground invasion. - More, BBC, http://www.bbc.com/news/world-middle-east-28290018