Palestinian security officials say a Palestinian militant blew himself up near a group of Israeli troops in the West Bank town of Jenin, and Israeli soldiers separately shot dead two other Palestinians.
The Israeli military says none of its troops were wounded when the suicide bomber attacked them during a raid on a suspected militant's home.
In two other incidents, Palestinian officials said Israeli troops shot dead two Palestinians during a gunbattle with militants.
Separately, Palestinians shot at the house of Palestinian Interior Minister Nasr Yussef. At least two men guarding his home and one gunman were wounded in the incident near Ramallah.
The violence comes as Palestinian officials work to ensure that the January 25 Legislative Council elections take place in a safe and secure environment.
Some information for this report was provided by AFP, AP and Reuters.