A second Kassam rocket was fired from the Gaza Strip on Tuesday afternoon.
The rocket, fired from the al-Tatra area, landed in a Palestinian area.
No one was reported wounded.
Earlier, a Kassam landed in a Sderot yard. No one was wounded there, although damage was caused to property.
Two unexploded rockets were found in the western Negev on Tuesday, as well - one in a cowshed and one in a soccer field.
It was unknown when they had been fired.