Security has been tightened throughout the country with police and military seen patrolling key urban areas in anticipation of expected demonstrations against the government called to coincide with independence day.
By midday, however, no demonstrations had begun.
People living in Dar es Salaam, Arusha, Mbeya, Mwanza reported an unusually slow start to the day, with many people choosing to remain indoors amid uncertainty over if the demonstrations would proceed.
The protests were organized to demand political reforms following October's post-election unrest which left an unknown number of people dead.
The authorities have admitted using force against protesters, asserting that some groups were attempting to overthrow the regime.
Correspondents noted on Tuesday nearly empty streets in the business hub, Dar es Salaam. This was a stark contrast to the city's usual weekday bustle.
While quiet, a palpable tension filled the air.
Armored vehicles were spotted cruising along primary thoroughfares and junctions, while personnel were stationed at key points, particularly near key public infrastructure.
On social media, activists and campaigners urged followers to remain vigilant, implying that any protest activity would likely commence later in the day. The messaging echoed past mobilization efforts in the country, when participation grew as the day progressed.
Drivers who went out experienced regular stops at security checkpoints, where police interrogated motorists about where they were headed.
The government has not issued detailed comments on the increased security or on the planned protests.
Tanzanian authorities have banned the planned protests and cancelled independence day celebrations, advising the public to remain at home.
"With many staying at home the atmosphere is quiet but tense."
The day's events depicted a country under strain, where the potential for demonstration led to a preemptive security lockdown that left conspicuously quiet typically busy urban centers.
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