TEL AVIV, Israel - (AP) -- A Palestinian rocket has targeted Tel Aviv on the third day of an Israeli military operation against the Gaza Strip.

Sirens wailed across the city Friday afternoon shortly before the explosion sounded out.

Police spokesman Micky Rosenfeld says no injuries have been reported and it appears the rocket landed in the Mediterranean.

It was the second straight day that Gaza militants have targeted Tel Aviv. The attacks, which Israel considers to be a major escalation, could draw an Israeli ground invasion of Gaza closer.