UPDATE: Birthright reports the American teen killed today was not participating on the Birthright program. We will continue to update as the story evolves.

Two attacks in Israel today have left at least five dead, including one American, Israeli media is reporting.

A drive-by shooting this morning in the Etzion bloc south of Jerusalem killed a 50-year-old Israeli, a Palestinian, and an 18-year-old American youth who was in the country as part of the Birthright program.

The suspect in the shooting has yet to be found.

Earlier today, a stabbing in Tel Aviv likewise left two more victims dead.

The Tel Aviv stabbing took place in the Panorama office building outside a room that was being used for prayer. One victim was killed on the scene, and the second died later after succumbing to the wounds.

UPDATE: One stabbing victim has been confirmed as Rabbi Aharon Yesiab. He was killed after leading a prayer service at the site.

The Palestinian attacker in Tel Aviv has already been taken in by authorities. He has been identified as Raid Halil bin Mahmoud, a 36-year-old father of five from a town near Hebron.

Today marks the deadliest day of terror since this most recent round of attacks began in September.