Three rockets have been fired late at villas occupied by US oil experts in Yemen's capital.
Residents said that the rockets landed near the villas where US oil experts from the former Hunt Oil firm, now called Safer and owned by Yemen, live.
The villas are behind a residential compound in the al-Hadda neighbourhood of southwestern Sanaa. Foreigners, including Westerners and Arabs, live in the compound, which also houses the offices of Safer oil company.
Police cordoned off the area, residents said. They also closed off roads leading to the US embassy in the northwestern sector of Sanaa.
Suspected al-Qaeda militants have carried out several attacks in Yemen in recent years.
