Myanmar soldiers and police opened fire Monday to disperse protesters in Mandalay, according to Frontier Myanmar.

The number of dead or injured wasn't known late Monday. A member of a student union in the city said some people were wounded.

Intensifying fears the military was going to impose a far harsher crackdown, troops in the northern city of Myitkyina fired tear gas then shot at a crowd late Sunday.

The military has increased efforts to quell an uprising against their seizure of power two weeks ago, which saw civilian leader Aung San Suu Kyi detained along with hundreds, including members of her democratically elected government.

The generals imposed an hourslong internet shutdown early Monday and ratcheted up the military's presence across the country overnight, including armored vehicles in Yangon, the nation's commercial hub and biggest city.

In addition, police and military have been deployed near the Myanmar Central Bank's office in the city of Yangon where another protest against the military coup is taking place, the Irrawaddy news website reported Monday.

Myanmar's ousted leader Aung San Suu Kyi was remanded in custody until Wednesday, her lawyer said as protesters began gathering again to demand her release and an end to military rule.

Security forces in Myanmar deployed armored vehicles in large cities two weeks after the military overthrew Suu Kyi's government and detained her on charges of illegally importing six walkie-talkie radios.

Her detention was due to expire Monday but her lawyer, Khin Maung Zaw, said a judge at a court in the capital, Naypyidaw, had said she was remanded until Feb. 17.

The Feb. 1 coup and the arrest of Suu Kyi and others have sparked the biggest protests in Myanmar in more than a decade. Hundreds of thousands have taken to the streets across the country for 10 days to denounce the coup, which derailed the South-east Asian country's tentative transition to democracy, and to call for Suu Kyi's release.

As well as the demonstrations around the country, the military is facing a strike by government workers, part of a civil disobedience movement that is crippling many functions of government.

Meanwhile, police trucks were deployed Monday near the Sule Pagoda in central Yangon, which has been one of the main demonstration sites in the commercial capital, as protesters began gathering peacefully outside the country's central bank and the China embassy.

At the bank, several hundred protesters held up signs calling for colleagues to join the CDM - the civil disobedience movement - and stating their refusal to accept the coup.  An armored vehicle and about six trucks carrying soldiers were parked nearby, a witness said.

Foreign embassies in Myanmar, including those of the U.S. and European Union member states, issued a joint statement Sunday saying they "unequivocally condemn the detention of political leaders, social activists and civil servants" and called for an end to violence against protesters.