U.S. embassy tells Americans in Yemen to stay indoors

An anti-government protester shouts slogans during a rally demanding the ouster of Yemen's President's Ali Abdullah Saleh in Sanaa March 21, 2011.

SANAA (Reuters) - The U.S. embassy urged its citizens in Yemen to stay indoors on Monday evening due to instability in the Arabian Peninsula country, a travel warning said. "Due to continued political instability and uncertainty in Sanaa and the rest of Yemen, the U.S. Embassy urges all U.S. citizens in Yemen to remain indoors this evening," the warning said.

(Writing by Cynthia Johnston, editing by Andrew Hammond)