Two rockets have hit a Shi'ite Muslim Beirut district that is home to Lebanon's Hezbollah militant group, driving home the risk that Syria's civil war could spill into its fragile neighbor.
The Sunday attack was the first to apparently target Hezbollah's southern Beirut stronghold since the outbreak of the two-year conflict in Syria, which has sharply heightened Lebanon's own sectarian divide.
The rockets landed in a car dealership and a residential building, wounding at least four people. It was not clear who was responsible for firing them.
The attacks came a day after Hezbollah chief Hassan Nasrallah declared his heavily armed fighters were committed to combating what he called radical Sunni Islamist rebels in Syria "whatever the consequences of this position."
In a televised speech Saturday, Nasrallah committed his followers to an all-out battle in Syria to defeat the rebellion against President Bashar al-Assad. He said the organization was entering "a completely new phase," sending troops abroad to protect its interests.
It was Nasrallah's most direct acknowledgement of Hezbollah's military involvement in Syria. Dozens of the group's fighters have been killed recently in the strategic Syrian town of Qusair, on the Lebanese border.
Outgunned Syrian rebels have held out for more than a week there against a joint assault by Iranian-backed Hezbollah and Syrian forces.