WRAPUP 6-Myanmar's Suu Kyi 'healthy', lawyer says, as U.S. orders non-essential staff to leave

(Updates with South Korean bank employee shot, vow from ousted MPs)

* Suu Kyi hold video meeting with lawyer

* At least 521 civilians killed since coup - activist group

* Karen rebel group says it faces government offensive

* U.S. urges rethink on investments backing Myanmar military

March 31 (Reuters) - Myanmar's deposed leader Aung San Suu Kyi appeared in good health on Wednesday in her first video meeting with one of her lawyers since she was detained in a coup, as the United States ordered non-essential embassy staff to leave the country.

The Nobel laureate, who has been held in custody since the military seized power on Feb. 1, had wanted to meet lawyers in person but ended up being allowed a video conference in the presence of police, lawyer Min Min Soe told Reuters by telephone.

"Amay looks healthy, her complexion is good," Min Min Soe said, using an affectionate term meaning "mother" to refer to Suu Kyi.

With police observing, only the legal cases against her filed since the coup were discussed, the lawyer said.

Suu Kyi, 75, was arrested the same day the military seized power and faces charges that include illegally importing six handheld radios and breaching coronavirus protocols.

The military has also accused her of bribery in two recent news conferences. Her lawyers say the charges were trumped up and dismissed the accusation of bribery as a joke.

The next hearing in her case is on Thursday.

The military has justified the coup by saying that a November election won by Suu Kyi's party was fraudulent. The election commission said the vote was fair.

The reimposition of military rule after a decade of tentative steps towards democracy has triggered unrelenting opposition.

At least 521 civilians have been killed in protests, 141 of them on Saturday, the bloodiest day of the unrest, according to the Assistance Association for Political Prisoners (AAPP).

Fighting has also flared between the army and ethnic minority insurgents in frontier regions. Refugees fleeing the turmoil are seeking safety in neighbouring countries.

POTS AND PANS PROTEST

Thousands of protesters were out again on Wednesday in different parts of the country.

Residents in the main city of Yangon banged pots and pans and honked their car horns in a clamour of defiance as a news crew from CNN was shown around in what its correspondent said was a heavily armed convoy.

A Myanmar national working for South Korea's Shinhan Bank was shot in the head and critically wounded in Yangon when a member of the security forces fired at the minivan she was travelling in, the Myanmar Now news portal reported.