Rockets hit Israeli resort of Eilat and Jordan's Aqaba
Police in Israel say at least five rockets have been fired at the southern Israeli tourist resort of Eilat from the Sinai desert in Egypt.
One was reported to have struck the nearby Jordanian port of Aqaba, injuring four civilians, while there were no casualties in Eilat.
Two rockets landed in the sea, an Israeli regional police commander said.
Egypt has denied that its territory was used to launch the apparent attack, says the BBC's Jon Leyne in Cairo.
An Egyptian official said his country had a heavy security presence in the Sinai peninsula, particularly close to the border, and that no suspicious activity had been reported anywhere in the area.
However, the Egyptian denial will be viewed sceptically by those who know the area, our correspondent says.
The government is in dispute, and sometimes conflict, with the Bedouin who live there. The Bedouin use their local knowledge to engage in widespread smuggling and are suspected of having helped those who carried out previous attacks in the area, he says.
Eilat Mayor Meir Itzhak Halevi told Israel Radio there was no sign any of the rockets had hit inside Eilat's city limits.
Israeli media reported that some of the rockets fell into the Red Sea and others in open spaces.
Eilat, which is a popular tourist resort, has largely been spared from rocket and other attacks.
In April, rockets were fired toward Eilat and Aqaba from Egypt's Sinai peninsula, an area from which Islamist militants have operated in the past. No-one was injured in that attack and the source of the firing was never established.
Eilat was hit in January 2007 by a suicide bomber, killing three people.
Israel has recently warned of increased militant activity in the Sinai peninsula and has advised its citizens against travelling there, says the BBC's Wyre Davies in Jerusalem.
In Jordan, Interior Minister Nayef Qadai told the AFP news agency: "A Grad rocket fell in the street in Aqaba, near to the Intercontinental hotel, destroying two cars and injuring four people, one of them seriously."
Two of the wounded were taxi drivers and one of their cars was destroyed, witness Mohammad Shudeifat, who was on his way to work in the area when the blast struck, told the Associated Press news agency.