Small groups of protesters have begun to gather in Myanmar, despite the armoured vehicles which have appeared on the streets of several cities.
The military’s heightened presence is the latest sign of a potential crackdown on opposition to the coup it carried out on 1 February.
Hundreds of thousands of people have taken part in protests over the last 10 days, demanding democracy be restored.
They also want their elected leaders released from detention.
But on Monday, the military announced civilian leader Aung San Su Kyi would be detained for a further two days.
She was rounded up with other members of the government in the early hours of 1 February, but her detention was due to end today, according to Reuters.
Her party was elected in a resounding victory last November, but the has alleged voter fraud without providing proof.