Sirens were sounded in the community of Kibbutz Yad Mordechai in southern Israel, the press service of the Israeli Defence Forces reported.
Later, the IDF said that the sirens were not triggered by the launch of a projectile.
This comes following Israel's announcement on Wednesday that it would deploy additional infantry troops to the West Bank and Gaza borders amid concerns of escalated tensions after the publication of US President Donald Trump's Mideast peace plan aimed at resolving the Israeli-Palestinian conflict.