The Israeli air force has launched airstrikes against targets in Gaza, according to reports from Israeli newspaper Haaretz.
The paper also tweeted an image of what appears to be an explosion caused by one of the strikes.
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Nick Thomas, an experienced endurance athlete, set off from Dover on Saturday morning.
Two pilots have been arrested on suspicion of being under the influence of alcohol as they prepared to fly from Scotland to the New York.
Two teenagers have been arrested on suspicion of drugs offences following the death of a 17-year-old youth who collapsed at Leeds Festival.