Imphal, April 05: Negotiators assigned to secure release of the abducted German National Heinrich Wolfgang returned empty handed, said intelligence sources adding that conditions of Wolfgang has improved substantially after a brief illness.

According to the source, Church leaders are involved in supplying medicines to prevent deterioration of his condition due to diarrhoea.

It may be mentioned that Wolfgang was abducted by KLA cadres on March 28 from near Moirang Purel area under Lamlai police station.

The KLA had also declared to media-persons recently that the German National will be released within a week�s time.

With appeals from several quarters to release Heinrich Wolfgang failing to evoke positive response from the abductors, social and voluntary organisations today staged sit-in-protests demanding safe and early release of Wolfgang.

Sit-in-protests were staged at Pallel and Sangaithel bazar to protest prolonged detention of Wolfgang.

At Pallel bazar, leaders and members of thirteen NGOs, women and voluntary organisations participated at the protest and appealed for his safe release.

The organisations are Pallel Bazar Board Action Committee, All Community Welfare Association, Pallel, Rural Education Action for Change, Manipur, Weaker Section Development Council, Khangshim, All Tribal Women Organisation, Tuisimi, Pallel Bazar Meira Paibi, People's Action for Rural Development' Organisation, Tuisimi.

Socio-Rural Development Organisation, Thamla Khuren, Integrated Rural Development Project, Maringphai, Khangshim Health and Development Organisation, Rural People's Development Federation, Nungourok, Maring Nupaiya Yinglam and Tarao Ringsim Organisation Manipur.

United NGO Mission, Chandel also organised sit-in-protest at the district headquarters today.

Over 100 persons took part in the protest.

Similar protest was staged at Sangaithel bazar by members of Sangaithel Mahila Mandal, Thuiyang Kabui Women Society, Langa Kolreng Development Society and Thangjing Chiru Women Society to demand immediate release of the detained social activist.

On the Imphal-Yairipok Road near Wangkhei Keithel Ashangbi, around 70 protesters participated in the agitation organised by Manipur Anganwadi Mahila Organisation and Palace Compound Meira Paibi Kangleipak Muslim Chanura Development Organisation staged dharna at Minuthong Hafiz Hatta from 9am till 4pm.Youths Union for Voluntary Action, Thonga, Rongmei Christian Development Society, Mass united Cross association and People Resource Development Association, Ishok Makha convened a meeting today at RCDS office, Bishnupur to condemned the abduction of Wolfgang.

They resolved to resort to various forms of agitation in the district if the GERMAN national is not released within April 7.All Colleges Tribal Students Organisation, Manipur appealed for safe and early release of German national Heinrich Wolfgang on humanitarian ground.

Meanwhile, Volunteers for Village Development chairman AY Tipnis has been released on bail today.

Tipnis was detained by Lamlai police station personnel in connection with alleged violation of Protected Area permit and abduction of Wolfgang.