Jerusalem(CNN)Two explosions shook Jerusalem early Wednesday, killing a teenager and injuring 18 others in a suspected "combined terror attack," authorities said.

The first explosion occurred at a bus station near the entrance to Jerusalem at 7:06 a.m., injuring 12 people, including the teen who later died, according to Magen David Adom (MDA), Israel's Red Cross affiliate. Three of the wounded were in serious condition.

A second explosion was reported almost half an hour later at the city's Ramot junction, at 7:30 a.m., police said. Three people were evacuated with minor injuries, while four were treated for "stress symptoms" according to MDA. Two Americans were among those injured, US Ambassador to Israel Tom Nides said on Twitter.

Initial investigations indicated that explosive devices were placed at both blast sites and a search is underway for suspects, the police spokesperson said.

An Israeli Police spokesperson said the devices used in Wednesday's attacks were very powerful and most likely detonated remotely by a "well-organized cell." One device was hidden behind a wall and the other behind a bush, the spokesperson added.

"The terrorists knew the area well," the spokesperson said.

No group has claimed responsibility for the incident.

Outgoing Prime Minister Yair Lapid said after participating in a situation assessment with security officials that the incident was "different from what we have seen in recent years."

"An extensive intelligence effort is now underway that will lead us to find these heinous terrorists, those behind them, and those who provided them with weapons," Lapid said. "We will find them. They can run, they can hide — it won't help them; the security forces will reach them. If they resist, they will be eliminated. If not, we will punish them to the fullest extent of the law."

The individual killed was a 15-year-old named Aryeh Shechopek, authorities said. Shechopek was a student at a yeshiva, a Jewish religious school, and lived in the Har Nof neighborhood in Jerusalem, the family said. Shechopek also held Canadian citizenship, Israeli and Canadian authorities said. Israeli emergency services had earlier reported that Shechopek was 16 years old.

Source : https://www.cnn.com/2022/11/23/middleeast/explosion-jerusalem-wednesday-intl-hnk/index.html