Four people are reported to have been injured in an incident on a bus in northern Israel.
One initial report spoke of a bomb attack on the bus, near the northern town of Beit Shean, some 80 kilometres (50 miles) north of Jerusalem.
But Israeli police then said the bus came under attack from a gunman and launched a search of the area.
Other reports say someone on the bus may have accidentally fired their gun, causing the injuries.
"The details aren't clear. The bus was damaged and it is believed it was struck by gunshots," Reuters news agency reports regional fire chief Avraham Rahamim telling Israel Radio.
"The windows are smashed in several places and we have people wounded by the glass and some who are in shock."
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