The American Embassy warned US citizens in Kuwait on Thursday to be cautious, saying "terrorists" have been conducting surveillance of at least one building where Westerners live.
According to The AP, it was the fourth security-related message from the embassy this month.
The embassy warning message pointed to two shootouts this month between Kuwaiti police and armed suspects that killed four.
The embassy warden message said it has "information that the group behind the recent shootings did not distinguish between official and civilian targets and that they conducted surveillance of at least one facility known to house a large number of Western civilians."
The embassy identified the buildings as the Alia and Ghaliya towers in Fintas, south of Kuwait City. Additional security measures have been put in place at the location, the warden message said.
"Heightened security awareness should be exercised in all residential complexes, as terrorists have specifically targeted a variety of Western housing facilities in the past," it said.
The embassy asked Americans to maintain a low profile, avoid areas where Westerners are known to congregate and report any suspicious activity to police.