Pakistan police are seeking to charge five Americans arrested in the country in early December with terrorism.
Investigator Tahir Gujar said the men, who are suspected of having links to Islamic militants, will appear in court in Sargodha on 4 January.
Police also want the young Muslims to face life sentences for allegedly plotting to carry out attacks.
US officials have also been looking at charging the same men, the Associated Press reported.
The are reported to be from the Washington DC area in the US.
Police said the men had been in direct contact with various militant groups in Pakistan since August and had offered their services for attacks.
Mr Gujar said police had almost finished their investigations and added: "We are certain that these five Americans wanted to carry out attacks in Pakistan, and we will seek life imprisonment for them."
Although police will recommend the charges during a court appearance on Monday, the Associated Press (AP) reports that this does not mean the court will charge them right away.
The five men were said by authorities to have had a map of Chashma Barrage in Punjab in their possession, AP reported. The area is close to a nuclear power facility.
Rana Sanaullah, the law minister for the Punjab province told AP the men were planning to meet Pakistan Taliban commander Hakimullah Mehsud.
FBI officials have previously said they were the same men who disappeared from their homes in the US state of Virginia last month.
Their families reported them missing after finding a farewell video message, showing scenes of war and calling for Muslims to be defended.