"We continue to demand the resignation of Lukashenko. Every minute that he is still in power, the economy is seeing great losses," the opposition Coordinating Council said in a statement.
Lukashenko also instructed the governor of the Grodno region in the west of the country, where the opposition following is particularly strong, to completely close the factories that were set to strike.
The president also threatened those participating in the strikes with job losses. Lukashenko, who has come under pressure with allegations of electoral fraud, also announced a tougher course of action against the opposition.
The strikes follow mass rallies on Sunday, which saw over 100,000 people gather in the streets of Minsk to again demand Lukashenko's resignation.
Lukashenko, dubbed by critics as the "last dictator in Europe," was seen on Sunday in his presidential palace with a firearm — a Kalashnikov submachine gun — in his hand.
The Defense Ministry announced Sunday it will deploy the army to protect national monuments.
"The news [of the army deployment] has outraged people here. So far only the riot police have been used against the protesters. It is unclear whether these soldiers will be willing to use force against unarmed demonstrators," said DW's Nick Connolly in Minsk.
The German government on Monday demanded an explanation over reports that dead bodies had been found amid the ongoing protests.
Germany’s government was shocked by the reported treatment of peaceful demonstrators in Belarus, government spokesman Steffen Seibert said.
Reports of dead bodies "must be fully clarified," he said.
Seibert also called for a dialogue between the Belarusian government and protesters.
"The people continue to show a lot of courage," Seibert said. "They must have the opportunity to help shape the destiny of their country," he said.
"A dialogue between government leaders and the Belarusian people is urgent in view of this situation," Seibert said, adding that the Organization for Security and Co-operation in Europe (OSCE) could mediate.
"There is no respect for society or freedom in Belarus"
Meanwhile, Belarusian opposition presidential candidate Sviatlana Tsikhanouskaya said she hopes a dialogue between the Coordination Council and authorities would start soon.
"The aim of the Council is to run a dialogue with the current authorities. I hope that dialogue will take place soon. However, the first condition is the release of political prisoners," Tsikhanouskaya told the Polish daily Gazeta Wyborcza in an interview published on Monday.