Israel launched multiple air strikes into the Gaza Strip Monday in response to Hamas lobbing rockets into Southern Israel, creating the deadliest day of violence since a new series of clashes began between Palestinians and Israelis.

The Israeli military said the strikes targeted "terror sites and concealed rocket launchers across the Gaza Strip" in response to 25 rockets that were fired into Israel Sunday, according to Reuters.

The fighting marks the deadliest violence since clashes began after three Israeli teenagers were murdered in the West Bank and one Palestinian teen was burned to death.

The Israeli army said that one Israeli soldier was wounded Monday from rocket fire from Gaza, which is controlled by Islamist militant group Hamas. Israeli air strikes also reportedly killed seven members of Hamas and two civilians in the Gaza Strip.

The Hamas members were reportedly killed in the southern town of Rafah at the Egyptian border, in what they call a "resistance location," which is possibly a reference to a smuggling tunnel.

Israel has blamed the killing of the three Jewish teenagers on Hamas. The subsequent killing of a 16-year-old Palestinian -- seemingly as an act of revenge -- sparked violent protests in Arab-Israeli neighborhoods throughout East Jerusalem last week.

On Sunday, Israel announced that it arrested six suspects in the murder of Mohammed Abu Khudair, the Palestinian teen who was apparently killed to avenge the deaths of the three Israeli teens. Khudair's body was found burned in Jerusalem Wednesday, a day after a funeral was held for Israeli teens Eyal Yifrach, 19, and Naftali Fraenkel and Gilad Shaar, both 16.

The three students, who were studying at a seminary, went missing while hitchhiking in the West Bank on June 12. Hamas has praised the killings but denied having any role in the abduction.

Israeli Prime Minister Benjamin Netanyahu said Sunday that Israel will do "whatever is necessary" to bring peace to southern Israeli towns. He also warned against a wider confrontation with Hamas, as they have long-range rockets that can reach deep into Israel, including its capital, Tel Aviv.

While many left and center-left Israelis believe in showing restraint to avoid further violence, far-right members of Netanyahu's cabinet are pushing for a stronger response to the rockets that are being launched by Hamas into Israeli towns.

The ultra-nationalist Yisrael Beiteinu party, which allied with Netanyahu's Likud party last year, is urging for a strong military response to Hamas.

The Beiteinu party recently split with Likud over disagreements concerning policy. Netanyahu has openly criticized the bellicose party, calling their rhetoric "inflammatory and brash."

Hamas spokesman Sami Abu Zuhri accused Israel of a "grave escalation" in violence and threatened retaliation, saying Israel will "pay the price."

The death of Khudair has incited clashes between Arab protesters and police in the east with protesters throwing rocks at police officers. The riots continued into Sunday night, and spilled over into Arab towns in southern and northern Israel.

Israeli police said they arrested 30 people in the riots.

Tensions began escalating during Israel's search for the missing teens, which marked the largest-scale Israeli military operation in the West Bank in 10 years. Israeli Defense Forces raided homes of suspected Hamas members and destroyed Hamas facilities.

Israel says that more than 160 rockets have been fired into Israel from Gaza since the search operation began.

Hamas' power is also being stymied by the Egyptian crackdown on the estimated 1,200 border smuggling tunnels run by Hamas. Egypt says they are being used to take weapons into the Sinai Peninsula.

Hamas denies such allegations, although they support the Muslim Brotherhood and aid militants in Sinai.

Hamas is also frustrated about certain aspects of their reconciliation with the Palestinian government, Fatah, which controls the West Bank. Hamas said that President Mahmoud Abbas' Fatah party has not paid the salaries of Hamas' 40,000 members.