The US Embassy in Israel warned of the possibility of terrorist attacks during  the Eurovision Song Contest in Tel Aviv, JPost reported.

“Terrorist groups may choose the anniversary, which coincides with the Eurovision Song Contest in Tel Aviv (May 14-18), or Nakba Day (May 15), to conduct violent protests or an attack,” The US Embassy said in a security alert on sent out on Monday night. "Security incidents can occur well beyond Gaza and its periphery and at any time.”

US citizens were urged to remain vigilant and take the siren signals seriously.